Conversion Calculators
Convert units of length, weight, temperature, and more.
52 calculators available
General
Length
Inches to Centimeters
Convert between inches and centimeters.
Centimeters to Inches
Convert centimeters to inches.
Meters to Feet Converter
Convert between meters and feet.
Feet to Meters
Convert feet to meters.
Miles to Kilometers
Convert between miles and kilometers.
Kilometers to Miles
Convert kilometers to miles.
Nautical Miles to Kilometers
Convert nautical miles to kilometers instantly.
Kilometers to Nautical Miles
Convert kilometers to nautical miles.
Weight
Pounds to Kilograms
Convert between pounds and kilograms.
Kilograms to Pounds
Convert kilograms to pounds.
Ounces to Grams
Convert between ounces and grams.
Grams to Ounces
Convert grams to ounces.
Metric Tons to Pounds
Convert metric tons to pounds instantly.
Pounds to Metric Tons
Convert pounds to metric tons.
Density Calculator
Calculate density from mass and volume, or solve for mass or volume when density is known.
Mass Calculator
Calculate mass from density and volume using M = ρ × V.
Temperature
Fahrenheit to Celsius
Convert temperatures between Fahrenheit and Celsius.
Celsius to Fahrenheit
Convert Celsius to Fahrenheit.
Celsius to Kelvin
Convert temperatures between Celsius and Kelvin.
Kelvin to Celsius
Convert Kelvin to Celsius.
Fahrenheit to Kelvin
Convert Fahrenheit to Kelvin.
Kelvin to Fahrenheit
Convert Kelvin to Fahrenheit instantly.
Volume
Gallons to Liters
Convert between gallons and liters.
Liters to Gallons
Convert liters to gallons.
Cups to Milliliters
Convert between cups and milliliters.
Milliliters to Cups
Convert milliliters to cups.
Fluid Ounces to Milliliters
Convert fluid ounces to milliliters instantly.
Milliliters to Fluid Ounces
Convert milliliters to fluid ounces.
Speed
MPH to KPH Converter
Convert between miles per hour and kilometers per hour.
KPH to MPH
Convert kilometers per hour to miles per hour.
Knots to MPH Converter
Convert between knots, MPH, and KPH.
MPH to Knots
Convert miles per hour to knots.
Mach to KPH
Convert Mach numbers to kilometers per hour instantly.
KPH to Mach
Convert kilometers per hour to Mach number.
Energy
Watts to Kilowatts Converter
Convert between watts, kilowatts, and horsepower.
Kilowatts to Watts
Convert kilowatts to watts.
BTU to Joules
Convert BTU to joules instantly.
Joules to BTU
Convert joules to BTU.
Joules to Calories Converter
Convert between joules, calories, and kilocalories.
Calories to Joules
Convert calories to joules.
Digital
Bytes to Kilobytes
Convert bytes to kilobytes instantly.
Kilobytes to Bytes
Convert kilobytes to bytes.
Bytes to Megabytes Converter
Convert between bytes, KB, MB, GB, and TB.
Megabytes to Bytes
Convert megabytes to bytes.
Megabytes to Gigabytes
Convert megabytes to gigabytes instantly.
Gigabytes to Megabytes
Convert gigabytes to megabytes instantly.
Gigabytes to Terabytes Converter
Convert between gigabytes and terabytes.
Terabytes to Gigabytes
Convert terabytes to gigabytes instantly.
Bandwidth Calculator
Calculate download times and data transfer rates.
Apparel
About Conversion Calculators
Convert units of length, weight, temperature, and more. CALTRX provides 52 free conversion calculators with step-by-step explanations, formulas, real-world examples, and expert tips. Every calculator is designed for clarity and accuracy, helping you understand not just the answer but the reasoning behind it.