About Premium Converters
Premium Converters is a free, browser-based hub of 159+ specialised calculators and unit converters built for users in Pakistan, India, the Gulf, and the rest of the world. Every tool runs entirely in your browser using JavaScript — your inputs, your salary numbers, your health data, and your construction estimates never leave your device. No sign-up, no account, no email capture, and no behavioural tracking. Open the page, do the math, close the tab.
What you can do here
The site organises tools into 10 topical clusters. Financial calculators cover loan EMI, mortgage, salary breakdown, income tax (with full Pakistan FBR slabs for 2024–25), GST, percentage, profit margin, compound interest with real-rate Fisher-equation inflation adjustment, and more. Health and fitness tools calculate BMI, BMR, TDEE, body fat, ideal weight, macronutrient split for cut/bulk/keto goals, one-rep max, VO₂ max, pace, child BMI percentile, and ovulation / pregnancy timelines. Construction covers brick, concrete, tile, paint, roofing, fence, drywall, gravel, lumber, stair, and HVAC sizing — with native Pakistani Marla / Kanal / Acre support and cement-sand BOQ output for masons and contractors.
Built for South Asia, useful everywhere
Most international calculator sites assume a US or European context. We treat Pakistan, India, and Gulf-state contexts as first-class. Our Islamic calculators implement classical Sunni Faraiz / Warasat (inheritance) per Quran 4:11–12 and 4:176, with side-by-side comparison across the four madhāhib (Hanafi, Maliki, Shafi'i, Hanbali). Zakat math handles Pakistani Nisab thresholds in live silver-rate PKR. Mahr-e-Fatimi anchors to today's silver price. Salah times and Qibla direction use your device's GPS for sub-degree accuracy. Hijri ↔ Gregorian conversion uses the Umm al-Qura calendar adopted across the Gulf. Property tax calculators use real FBR provincial rates with filer / non-filer / late-filer differentiation.
Why browser-based, not an app
Phone storage matters. Installing 159 separate apps to do basic conversions is wasteful. Every calculator on this site loads in under a second, runs offline once cached, and works on every device from a 6-year-old Android to a desktop browser. Each tool exports its result as a branded PNG or multi-page PDF, and shares directly to WhatsApp, Facebook, Telegram, X, LinkedIn, or email through the native OS share sheet. For long calculations like Faraiz inheritance, the result includes a full step-by-step working — useful when you want to verify the math with a Mufti, lawyer, or accountant.
Verified formulas, transparent math
Every calculator shows the formula it uses and the step-by-step derivation of your specific result. For BMI we use the WHO standard formula and classification bands; for compound interest we use FV = P(1 + r/n)^(nt) with periodic-contribution support and Fisher real-rate adjustment for inflation; for Qibla bearing we use the great-circle initial-bearing formula relative to the Kaaba's true coordinates (21.4225° N, 39.8262° E). Sources are cited where applicable so you can independently verify the math.
The site is maintained by a single full-stack developer (Muhammad Salman Saleem) and is supported entirely by display ads — zero paywalls, no premium tiers, no upsells, no email capture, no nag prompts. If you find a bug, a wrong formula, or a tool you'd like added, the contact page goes directly to a maintainer inbox. Updates ship continuously.