16 free calculators — Length, weight, temperature, volume, speed, data and more — converted accurately in both directions.
Convert between metric and imperial length units instantly.
Use calculatorConvert kilograms, pounds, ounces, stones and more in one step.
Use calculatorSwitch between Celsius, Fahrenheit and Kelvin with offset-aware math.
Use calculatorConvert liters, gallons, cups, tablespoons and other volume measures.
Use calculatorConvert square meters, feet, acres, hectares and more.
Use calculatorConvert between km/h, mph, knots, m/s and ft/s.
Use calculatorConvert bytes, kilobytes, megabytes, gigabytes — decimal and binary.
Use calculatorConvert seconds, minutes, hours, days, weeks, months and years.
Use calculatorTranslate between MPG (US/UK), L/100km and km/L consumption figures.
Use calculatorConvert psi, bar, atmospheres, pascals and mmHg.
Use calculatorConvert centimeters to inches (and back) with the exact 2.54 factor.
Use calculatorConvert kilograms to pounds (and pounds to kilograms) precisely.
Use calculatorConvert °C to °F (and °F to °C) with instant two-way results.
Use calculatorConvert time between time zones: enter time and select from and to zones — see converted time and offset.
Use calculatorConvert currencies using exchange rates — see converted amount, rate and inverse.
Use calculatorConvert crypto to fiat or between cryptos using price — see converted amount and market cap.
Use calculatorConversion calculators: Length, weight, temperature, volume, speed, data and more — converted accurately in both directions. Browse 16 free tools for conversion tasks. Enter values for instant results with formulas shown. No signup needed.
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| Calculator | What It Does | Formula |
|---|---|---|
| Length Converter | Convert between metric and imperial length units instantly. | result = value × (from-factor ÷ to-factor), factors anchored on meters |
| Weight Converter | Convert kilograms, pounds, ounces, stones and more in one step. | result = value × (from-factor ÷ to-factor), anchored on kilograms |
| Temperature Converter | Switch between Celsius, Fahrenheit and Kelvin with offset-aware math. | °F = °C × 9⁄5 + 32; K = °C + 273.15 |
| Volume Converter | Convert liters, gallons, cups, tablespoons and other volume measures. | result = value × (from-factor ÷ to-factor), anchored on liters |
| Area Converter | Convert square meters, feet, acres, hectares and more. | result = value × (from²-factor ÷ to²-factor), anchored on square meters |
| Speed Converter | Convert between km/h, mph, knots, m/s and ft/s. | result = value × (from-factor ÷ to-factor); 1 mph = 1.609344 km/h exactly |
| Data Storage Converter | Convert bytes, kilobytes, megabytes, gigabytes — decimal and binary. | decimal prefixes step by 1000; binary prefixes (KiB, MiB…) step by 1024 |
| Time Unit Converter | Convert seconds, minutes, hours, days, weeks, months and years. | fixed seconds per unit; month = 30.44 days average, year = 365.25 days |
| Fuel Economy Converter | Translate between MPG (US/UK), L/100km and km/L consumption figures. | L/100km = 100 ÷ (km per liter); MPG-US = kml × 3.78541 ÷ 1.609344 |
| Pressure Converter | Convert psi, bar, atmospheres, pascals and mmHg. | result = value × (from-factor ÷ to-factor), anchored on the pascal |
| CM to Inches Calculator | Convert centimeters to inches (and back) with the exact 2.54 factor. | inches = centimeters ÷ 2.54 (exact definition) |
| KG to LBS Calculator | Convert kilograms to pounds (and pounds to kilograms) precisely. | pounds = kilograms × 2.20462262185 (exact) |
| Celsius to Fahrenheit Calculator | Convert °C to °F (and °F to °C) with instant two-way results. | °F = °C × 9⁄5 + 32 |
| Time Zone Converter | Convert time between time zones: enter time and select from and to zones — see converted time and offset. | Converted = time - fromOffset + toOffset (in minutes, mod 24h) |
| Currency Converter | Convert currencies using exchange rates — see converted amount, rate and inverse. | Converted = amount*rate*(1-fee/100) |
| Crypto Converter | Convert crypto to fiat or between cryptos using price — see converted amount and market cap. | Value USD = amount*price; Target amount = value / targetPrice |
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