Conversion Calculators
Convert units of length, weight, temperature, and more.
53 calculators available
Apparel
Digital
Bandwidth Calculator
Calculate download times and data transfer rates.
Bytes to Kilobytes
Convert bytes to kilobytes instantly.
Bytes to Megabytes Converter
Convert between bytes, KB, MB, GB, and TB.
Megabytes to Gigabytes
Convert megabytes to gigabytes instantly.
Gigabytes to Terabytes Converter
Convert between gigabytes and terabytes.
Kilobytes to Bytes
Convert kilobytes to bytes.
Megabytes to Bytes
Convert megabytes to bytes.
Gigabytes to Megabytes
Convert gigabytes to megabytes instantly.
Terabytes to Gigabytes
Convert terabytes to gigabytes instantly.
Energy
BTU to Joules
Convert BTU to joules instantly.
Joules to Calories Converter
Convert between joules, calories, and kilocalories.
Watts to Kilowatts Converter
Convert between watts, kilowatts, and horsepower.
Joules to BTU
Convert joules to BTU.
Calories to Joules
Convert calories to joules.
Kilowatts to Watts
Convert kilowatts to watts.
General
Length
Inches to Centimeters
Convert between inches and centimeters.
Meters to Feet Converter
Convert between meters and feet.
Miles to Kilometers
Convert between miles and kilometers.
Nautical Miles to Kilometers
Convert nautical miles to kilometers instantly.
Centimeters to Inches
Convert centimeters to inches.
Feet to Meters
Convert feet to meters.
Kilometers to Miles
Convert kilometers to miles.
Kilometers to Nautical Miles
Convert kilometers to nautical miles.
Speed
Knots to MPH Converter
Convert between knots, MPH, and KPH.
MPH to KPH Converter
Convert between miles per hour and kilometers per hour.
Mach to KPH
Convert Mach numbers to kilometers per hour instantly.
MPH to Knots
Convert miles per hour to knots.
KPH to MPH
Convert kilometers per hour to miles per hour.
KPH to Mach
Convert kilometers per hour to Mach number.
Temperature
Celsius to Kelvin
Convert temperatures between Celsius and Kelvin.
Fahrenheit to Celsius
Convert temperatures between Fahrenheit and Celsius.
Kelvin to Fahrenheit
Convert Kelvin to Fahrenheit instantly.
Celsius to Fahrenheit
Convert Celsius to Fahrenheit.
Kelvin to Celsius
Convert Kelvin to Celsius.
Fahrenheit to Kelvin
Convert Fahrenheit to Kelvin.
Volume
Cups to Milliliters
Convert between cups and milliliters.
Fluid Ounces to Milliliters
Convert fluid ounces to milliliters instantly.
Gallons to Liters
Convert between gallons and liters.
Milliliters to Cups
Convert milliliters to cups.
Milliliters to Fluid Ounces
Convert milliliters to fluid ounces.
Liters to Gallons
Convert liters to gallons.
Weight
Metric Tons to Pounds
Convert metric tons to pounds instantly.
Ounces to Grams
Convert between ounces and grams.
Pounds to Kilograms
Convert between pounds and kilograms.
Kilograms to Pounds
Convert kilograms to pounds.
Grams to Ounces
Convert grams to ounces.
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.
Weight Calculator
Convert between weight units including pounds, kilograms, ounces, stone, and grams.
About Conversion Calculators
Convert units of length, weight, temperature, and more. CALTRX provides 53 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.