Browse every free calculator and unit converter on ConversionsHome in one place. All 65 tools are free, work instantly in your browser, and need no sign-up.
Calculator (10)
- Average Calculator
- CGPA Calculator - Semester GPA
- Date Difference Calculator
- GPA Calculator - Grade Point Average
- GPA to Percentage Calculator - All Scales
- Marks Percentage Calculator - Score to Percent
- Online Calculator - Free Basic Calculator
- Percentage Calculator
- Ratio Calculator - Solve A:B = C:X
- University Merit Calculator - Weighted Aggregate
Converters (14)
- Area Converter (m2, ft2, acres)
- Data Storage Converter (GB to MB, KB, TB)
- Energy Converter (kWh, joules, kcal, BTU)
- Frequency Converter (Hz, kHz, MHz, GHz)
- Length Converter (m, ft, in, cm, km)
- Microliter to Milliliter Converter (µL to mL) - Lab Volume
- Power Converter (kW to hp, watts, BTU/h)
- Pressure Converter (psi to bar, kPa, atm)
- Speed Converter (km/h to mph, m/s, knots)
- Temperature Converter (C to F, K)
- Time Converter
- Volume Converter (litres to gallons)
- Weight Converter (kg to lb, oz, g)
- Unit Conversion (Microgram, Milligram etc.)
Finance (13)
- Compound Interest Calculator
- Car Loan EMI Calculator - Monthly Payment
- Discount Calculator
- EMI Calculator
- Gold Zakat Calculator - Tola, Gram & Ounce
- Loan Calculator - Monthly Payment
- Mortgage Calculator - Monthly Payment
- Pakistan Salary Tax Calculator 2026 - FBR Slabs (Tax Year 2026-27)
- Sales Tax Calculator
- Simple Interest Calculator
- SIP Calculator: Monthly Investment Growth Planner
- Tip Calculator
- Zakat Calculator
Health (5)
- Age Calculator
- BMI Calculator - Body Mass Index
- Calorie Calculator
- Daily Water Intake Calculator
- Sleep Calculator
Math (7)
- Exponent Calculator - Powers and Exponents
- Factorial Calculator - n! Free Online
- Fraction Calculator
- Logarithm Calculator - Log Any Base
- Scientific Calculator
- Scientific Notation Converter - Standard Form
- Square Root Calculator - Free Online
Tools (3)
- Pakistan Electricity Bill Calculator 2026 - NEPRA Slab Rates
- Random Number Generator
- Solar Savings Calculator - Net Metering
Biology (5)
- Cat Food Calculator: Daily Feeding Amount by Weight
- Dog Food Calculator: How Much to Feed Your Dog Daily
- TDEE Calculator: Daily Calorie Needs, Any Units
- BMR Calculator - Basal Metabolic Rate
- Body Fat Percentage Calculator
Chemistry (4)
- Dilution Calculator: C1V1 = C2V2 Solver
- pH Calculator: pH, pOH, [H+], [OH-] Converter
- Molarity Calculator: Moles, Volume & Concentration
- Ideal Gas Law Calculator - PV = nRT