What's a 'good' pace?

Depends entirely on age, fitness, and distance — and on what 'good' means to you. For a 30-year-old male recreational runner: 5:00 min/km for a 5K is solid, 5:30 min/km for 10K is very respectable, 6:00 min/km for a marathon is a strong amateur result. Women's competitive paces typically run around 10 percent slower at the same training fitness. But honestly, 'good' is whatever's a personal best from where you started. Comparison to strangers is the fastest way to stop enjoying running.

Why is my marathon time slower than my 5K pace × 8?

Because fatigue isn't linear. Your glycogen tanks, your hydration drifts, your form decays around km 30, and your muscular efficiency drops the longer you're out there. Riegel's formula bakes this in: T2 = T1 times (D2/D1)^1.06. A 25-minute 5K extrapolates to a 4-hour 9-minute marathon, not a 3-hour 30. The empirical rule of thumb: you lose 5 to 10 percent of pace per doubling of distance. Plan around the math, not your ego.

How do I improve my pace?

The 80/20 rule that elite endurance coaches swear by: 80 percent of your weekly running at easy conversational pace (Zone 2, where you could chat in full sentences), 20 percent at hard intervals or tempo work. Most amateurs reverse this ratio — they grind hard every session and wonder why they plateau. Total volume matters more than intensity for most runners. Doubling your weekly km typically drops race pace by 30 to 60 seconds per km after 3 to 6 months of consistent work.

What pace burns the most calories?

Calories per minute scale roughly linearly with pace — so yes, faster equals more calories per minute. But slower equals more total minutes on your feet, which often wins on total calorie burn. For pure calorie expenditure, total kilometres matters more than pace. If fat loss is the goal, the easy-paced 10K beats the hard-paced 5K most of the time. Pair it with our Calories Burned Calculator for activity-specific estimates.

What's the difference between pace and tempo?

Pace is just your speed expressed as min/km — a measurement. Tempo is a training term: a sustained effort at your lactate threshold, which is roughly the pace you could hold for about 1 hour all-out. Practically, that lands around your 10K race pace plus 10 to 15 seconds per km. Tempo runs build the speed endurance that lets you hold a hard pace without blowing up. They're not 'kind of hard' — they're deliberately controlled at threshold. Going too fast on tempo days is the most common mistake recreational runners make.

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Pace Calculator (Running)

Health

Convert finish time ↔ pace per km/mile + predicted finish times for 5K, 10K, half marathon, marathon.

Health

Pace Calculator (Running)

Generated on May 23, 2026

Distance

Unit

Total time (HH : MM : SS)

Save / share— download or share to WhatsApp, Facebook & more

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Pace & Speed Result

5:00 min/km · 12.00 km/h · 25:00

Generated

5/23/2026

Total time

25:00

Pace / km

5:00 min

Pace / mi

8:03 min

Speed

12.00 km/h

7.46 mph

Predicted finish times at this pace

5 km

25:00

10K

10.00 km

50:00

Half Marathon

21.10 km

1:45:29

Marathon

42.20 km

3:30:59

These assume you sustain the same pace — race times are usually 5–10% slower for longer distances due to fatigue.

Step-by-step calculation

Formula

Pace = total time ÷ distance. Speed = distance ÷ time. 1 km = 0.621 miles.

11 km equals 0.621371 miles.
2Pace per km = total minutes ÷ kilometres.
3Speed (km/h) = distance ÷ time (hours).
4World-class marathon pace is ~2:50 min/km. A typical recreational runner targets 5–7 min/km.
5For walks, brisk walking is ~10–12 min/km (5–6 km/h).

Quick Answer

Convert finish time ↔ pace per km/mile + predicted finish times for 5K, 10K, half marathon, marathon.

Overview — Pace Calculator (Running)

Health

Formula

Pace = total time ÷ distance.   Speed = distance ÷ time.   1 km = 0.621371 miles, so pace in min/km × 1.609 = pace in min/mile.

A 1:20:00 half marathon (3:48 min/km) puts you in roughly the top 5% of recreational half-marathoners.

Eliud Kipchoge's sub-2-hour marathon attempt (1:59:40, Vienna 2019) = 2:50 min/km — held for 42 km.

The Boston Marathon qualifying time for a 35-year-old male is 3:00:00 = 4:16 min/km — one of running's iconic benchmarks.

By Muhammad Salman SaleemUpdated: May 23, 2026MethodologyFree, no sign-upRuns in your browser — your data stays private

From the editors — what to know before you start

You finished a run, glanced at your watch, and now you want to know what that pace actually means — and more importantly, what it would translate into over 10K or a half marathon. Here's the thing every new runner learns the hard way: pace doesn't scale linearly. A 5:00 min/km that feels comfortable for a 5K won't hold for a marathon. Fatigue is non-linear, glycogen runs out, your form decays around km 30, and most amateurs lose 5 to 10 percent per doubling of distance. Riegel's formula bakes this in. So if you're running 5K in 25 minutes and dreaming of a 3:30 marathon, the math says closer to 4:09 — which is still excellent, just honest. Use this calculator to convert between min/km (what most of the world uses including Pakistan), min/mile (US, UK, older books), and km/h, plus get realistic predicted finish times across the four classic distances. Pro tip: most amateur improvement comes from running 80 percent of weekly volume at conversational easy pace, not from grinding hard every session. Speed work matters, but the easy miles are what build the engine. Race the calculator's prediction; train slower than your ego wants.

Pro tips most people learn the hard way

Marathon pace isn't 5K pace held longer — Riegel's formula (T2 = T1 × (D2/D1)^1.06) is the realistic predictor. A 22-minute 5K runner is on track for roughly a 3:36 marathon, not a 3:05. Trust the formula; it's been validated across millions of race results.
Run 80 percent of your weekly volume at easy conversational pace — slow enough that you could chat in full sentences. The other 20 percent can be intervals, tempo, or threshold. Most amateurs reverse this ratio and wonder why they plateau.
Converting min/km to min/mile: multiply by 1.609. So 5:00 min/km is roughly 8:03 min/mile. Memorise this if you read training plans from US or UK coaches — half of them still use mile splits and the confusion adds up over a long block.
Tempo pace is roughly your current 1-hour race pace — typically 10K race pace plus 10 to 15 seconds per km. It's not 'kind of hard'; it's deliberately controlled at threshold. Going too fast on tempo days is the most common mistake recreational runners make.
Heat, humidity, and altitude all shift pace by 5 to 15 seconds per km easily. A 5:00 min/km in 20-degree Islamabad morning becomes 5:20 in 35-degree Karachi noon for the same heart rate. Train by effort or heart rate in heat, not by your old splits.

?What is the Pace Calculator (Running)?

The Pace Calculator converts between finish time, distance, and running pace — the three numbers every runner cares about. Enter any two and get the third, plus your sustained speed in km/h and mph, and predicted finish times for the four classic race distances (5K, 10K, half marathon, marathon). Pace is reported in both min/km (the metric standard used in Pakistan, Europe, Asia, and most of the world) and min/mile (US, UK, common in older training plans). The predicted-time table assumes you can hold the same pace; in reality, race times are typically 5–10% slower for longer distances due to fatigue, so use the predictions as upper-bound estimates.

The Formula

Pace = total time ÷ distance. Speed = distance ÷ time. 1 km = 0.621371 miles, so pace in min/km × 1.609 = pace in min/mile.

Pace and speed are reciprocals dressed up differently — runners think in pace (small numbers; smaller is faster) while drivers think in speed (small numbers; bigger is faster). A 4:00 min/km pace = 15.0 km/h; a 6:00 min/km pace = 10.0 km/h; a 10:00 min/km pace (slow jog / brisk walk) = 6.0 km/h. Race-time prediction at sustained pace is the simple linear extrapolation; serious training uses Riegel's formula (T2 = T1 × (D2/D1)^1.06) which accounts for fatigue.

Pace ↔ Speed Reference Table

Common training and racing paces with equivalents in min/km, min/mile, km/h, and mph.

Pace (min/km)	Pace (min/mile)	Speed (km/h)	Speed (mph)	Description
3:00	4:50	20.0	12.43	World-class sprint endurance (5K record territory)
4:00	6:26	15.0	9.32	Elite recreational / strong amateur
5:00	8:03	12.0	7.46	Strong recreational
5:30	8:51	10.91	6.78	Solid recreational
6:00	9:39	10.0	6.21	Average recreational pace
7:00	11:16	8.57	5.33	Easy / recovery pace
8:00	12:53	7.5	4.66	Slow jog / fast walk
10:00	16:06	6.0	3.73	Brisk walking pace
12:00	19:19	5.0	3.11	Casual walking

Put It in Perspective

A 1:20:00 half marathon (3:48 min/km) puts you in roughly the top 5% of recreational half-marathoners.

Eliud Kipchoge's sub-2-hour marathon attempt (1:59:40, Vienna 2019) = 2:50 min/km — held for 42 km.

The Boston Marathon qualifying time for a 35-year-old male is 3:00:00 = 4:16 min/km — one of running's iconic benchmarks.

A typical 5K parkrun finisher averages 25-30 minutes (5:00-6:00 min/km).

Practical Examples

5K in 25:00 = 5:00 min/km pace = 12.0 km/h average — a comfortable recreational pace.

10K in 50:00 = 5:00 min/km pace, sustained for double the distance — very respectable amateur level.

Marathon in 4:00:00 (4 hours) = 5:41 min/km pace = 10.55 km/h — a popular amateur target.

Sub-3-hour marathon (2:59:59) = 4:16 min/km pace = 14.07 km/h — competitive amateur / fast age-group level.

World record marathon (Kelvin Kiptum, 2:00:35) = 2:51 min/km = 21.0 km/h — sustained for 42 km.

5 km/h is brisk walking pace = 12:00 min/km. Compare your running pace to this baseline.

Frequently Asked Questions

Multiply your min/km pace by 1.609. So 5:00 min/km comes out to roughly 8:03 min/mile (5 times 1.609 equals 8.045, which rounds to 8 minutes 3 seconds). Worth memorising if you read US or UK training plans — half of them still use mile splits and the confusion compounds over a long training block. Or just use the calculator above and skip the arithmetic.

Popular Conversions

Jump to a ready-made conversion — useful for quick reference and sharing:

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BMI Calculator

Calculate Body Mass Index against WHO and Asian-population thresholds for men and women using kg or lb, cm or inches, with healthy-range guidance.

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TDEE Calculator

Compute Total Daily Energy Expenditure from BMR and activity multiplier (sedentary to extra active) to set kcal targets for cutting, maintenance, or bulking.

Ideal Weight Calculator

Find your ideal weight range in kg and lb using the Robinson, Miller, Devine and Hamwi formulas alongside the BMI 18.5-24.9 healthy band for men and women.

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Estimate body fat percentage with the US Navy tape-measure method using neck, waist and hip in cm or inches — a no-cost alternative to DEXA scans for men and women.

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Premium Converters

Pace Calculator (Running)

Health

Convert finish time ↔ pace per km/mile + predicted finish times for 5K, 10K, half marathon, marathon.

Health

Pace Calculator (Running)

Generated on May 23, 2026

Distance

Unit

Total time (HH : MM : SS)

Save / share— download or share to WhatsApp, Facebook & more

Premium Converters

Pace & Speed Result

5:00 min/km · 12.00 km/h · 25:00

Generated

5/23/2026

Total time

25:00

Pace / km

5:00 min

Pace / mi

8:03 min

Speed

12.00 km/h

7.46 mph

Predicted finish times at this pace

5 km

25:00

10K

10.00 km

50:00

Half Marathon

21.10 km

1:45:29

Marathon

42.20 km

3:30:59

These assume you sustain the same pace — race times are usually 5–10% slower for longer distances due to fatigue.

Step-by-step calculation

Formula

Pace = total time ÷ distance. Speed = distance ÷ time. 1 km = 0.621 miles.

11 km equals 0.621371 miles.
2Pace per km = total minutes ÷ kilometres.
3Speed (km/h) = distance ÷ time (hours).
4World-class marathon pace is ~2:50 min/km. A typical recreational runner targets 5–7 min/km.
5For walks, brisk walking is ~10–12 min/km (5–6 km/h).

Quick Answer

Convert finish time ↔ pace per km/mile + predicted finish times for 5K, 10K, half marathon, marathon.

Overview — Pace Calculator (Running)

Health

Formula

Pace = total time ÷ distance.   Speed = distance ÷ time.   1 km = 0.621371 miles, so pace in min/km × 1.609 = pace in min/mile.

A 1:20:00 half marathon (3:48 min/km) puts you in roughly the top 5% of recreational half-marathoners.

Eliud Kipchoge's sub-2-hour marathon attempt (1:59:40, Vienna 2019) = 2:50 min/km — held for 42 km.

The Boston Marathon qualifying time for a 35-year-old male is 3:00:00 = 4:16 min/km — one of running's iconic benchmarks.

By Muhammad Salman SaleemUpdated: May 23, 2026MethodologyFree, no sign-upRuns in your browser — your data stays private

From the editors — what to know before you start

Pro tips most people learn the hard way

Marathon pace isn't 5K pace held longer — Riegel's formula (T2 = T1 × (D2/D1)^1.06) is the realistic predictor. A 22-minute 5K runner is on track for roughly a 3:36 marathon, not a 3:05. Trust the formula; it's been validated across millions of race results.
Run 80 percent of your weekly volume at easy conversational pace — slow enough that you could chat in full sentences. The other 20 percent can be intervals, tempo, or threshold. Most amateurs reverse this ratio and wonder why they plateau.
Converting min/km to min/mile: multiply by 1.609. So 5:00 min/km is roughly 8:03 min/mile. Memorise this if you read training plans from US or UK coaches — half of them still use mile splits and the confusion adds up over a long block.
Tempo pace is roughly your current 1-hour race pace — typically 10K race pace plus 10 to 15 seconds per km. It's not 'kind of hard'; it's deliberately controlled at threshold. Going too fast on tempo days is the most common mistake recreational runners make.
Heat, humidity, and altitude all shift pace by 5 to 15 seconds per km easily. A 5:00 min/km in 20-degree Islamabad morning becomes 5:20 in 35-degree Karachi noon for the same heart rate. Train by effort or heart rate in heat, not by your old splits.

?What is the Pace Calculator (Running)?

The Formula

Pace = total time ÷ distance. Speed = distance ÷ time. 1 km = 0.621371 miles, so pace in min/km × 1.609 = pace in min/mile.

Pace ↔ Speed Reference Table

Common training and racing paces with equivalents in min/km, min/mile, km/h, and mph.

Pace (min/km)	Pace (min/mile)	Speed (km/h)	Speed (mph)	Description
3:00	4:50	20.0	12.43	World-class sprint endurance (5K record territory)
4:00	6:26	15.0	9.32	Elite recreational / strong amateur
5:00	8:03	12.0	7.46	Strong recreational
5:30	8:51	10.91	6.78	Solid recreational
6:00	9:39	10.0	6.21	Average recreational pace
7:00	11:16	8.57	5.33	Easy / recovery pace
8:00	12:53	7.5	4.66	Slow jog / fast walk
10:00	16:06	6.0	3.73	Brisk walking pace
12:00	19:19	5.0	3.11	Casual walking

Put It in Perspective

A 1:20:00 half marathon (3:48 min/km) puts you in roughly the top 5% of recreational half-marathoners.

Eliud Kipchoge's sub-2-hour marathon attempt (1:59:40, Vienna 2019) = 2:50 min/km — held for 42 km.

The Boston Marathon qualifying time for a 35-year-old male is 3:00:00 = 4:16 min/km — one of running's iconic benchmarks.

A typical 5K parkrun finisher averages 25-30 minutes (5:00-6:00 min/km).

Practical Examples

5K in 25:00 = 5:00 min/km pace = 12.0 km/h average — a comfortable recreational pace.

10K in 50:00 = 5:00 min/km pace, sustained for double the distance — very respectable amateur level.

Marathon in 4:00:00 (4 hours) = 5:41 min/km pace = 10.55 km/h — a popular amateur target.

Sub-3-hour marathon (2:59:59) = 4:16 min/km pace = 14.07 km/h — competitive amateur / fast age-group level.

World record marathon (Kelvin Kiptum, 2:00:35) = 2:51 min/km = 21.0 km/h — sustained for 42 km.

5 km/h is brisk walking pace = 12:00 min/km. Compare your running pace to this baseline.

Frequently Asked Questions

Popular Conversions

Jump to a ready-made conversion — useful for quick reference and sharing:

Browse all Health

BMI Calculator

Calculate Body Mass Index against WHO and Asian-population thresholds for men and women using kg or lb, cm or inches, with healthy-range guidance.

BMR Calculator

Estimate Basal Metabolic Rate using the Mifflin-St Jeor equation by sex, age, weight and height — the resting kcal/day baseline for diet planning.

TDEE Calculator

Compute Total Daily Energy Expenditure from BMR and activity multiplier (sedentary to extra active) to set kcal targets for cutting, maintenance, or bulking.

Ideal Weight Calculator

Find your ideal weight range in kg and lb using the Robinson, Miller, Devine and Hamwi formulas alongside the BMI 18.5-24.9 healthy band for men and women.

Water Intake Calculator

Calculate daily water intake in millilitres or litres from body weight and exercise minutes, with hot-climate, pregnancy and breastfeeding adjustments.

Body Fat Calculator

Estimate body fat percentage with the US Navy tape-measure method using neck, waist and hip in cm or inches — a no-cost alternative to DEXA scans for men and women.

Macro Calculator

Calculate your daily protein, carbohydrate, and fat targets based on your goals.

Pregnancy Due Date Calculator

Estimate baby's due date using Naegele's rule (LMP + 280 days), adjusted for cycle length, with conception date, trimester boundaries and current week and day.

Browse all Health calculators & converters

See every tool in this category, plus FAQs and category-specific guides.

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Pace Calculator (Running) — finish time ↔ pace per km/mile + predicted finish times… | Premium Converters

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Pace Calculator (Running)

Pace Calculator (Running)

Pace & Speed Result

Predicted finish times at this pace

Step-by-step calculation

Overview — Pace Calculator (Running)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Pace Calculator (Running)?

The Formula

Pace ↔ Speed Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

Popular Conversions

Embed this calculator on your site

Browse other categories

Premium Converters

Pace Calculator (Running)

Pace Calculator (Running)

Pace & Speed Result

Predicted finish times at this pace

Step-by-step calculation

Overview — Pace Calculator (Running)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Pace Calculator (Running)?

The Formula

Pace ↔ Speed Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

Popular Conversions

Embed this calculator on your site

Browse other categories

Premium Converters

Premium Converters

Pace Calculator (Running)

Pace Calculator (Running)

Predicted finish times at this pace

Step-by-step calculation

Overview — Pace Calculator (Running)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Pace Calculator (Running)?

The Formula

Pace ↔ Speed Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

How do I convert min/km to min/mile?

What's a 'good' pace?

Why is my marathon time slower than my 5K pace × 8?

How do I improve my pace?

What pace burns the most calories?

What's the difference between pace and tempo?

Popular Conversions

Embed this calculator on your site

More Health Tools

Browse other categories

Premium Converters

Pace Calculator (Running)

Pace Calculator (Running)

Predicted finish times at this pace

Step-by-step calculation

Overview — Pace Calculator (Running)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Pace Calculator (Running)?

The Formula

Pace ↔ Speed Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

How do I convert min/km to min/mile?

What's a 'good' pace?

Why is my marathon time slower than my 5K pace × 8?

How do I improve my pace?

What pace burns the most calories?

What's the difference between pace and tempo?

Popular Conversions

Embed this calculator on your site

More Health Tools

Browse other categories