Free Unit Converters & Calculators
This page is the full GSFTEK tool library. Four converters cover weight, temperature, length, and volume, and each category links to a page for one conversion, such as kilograms to pounds or Celsius to Fahrenheit. Calculators cover adult BMI, loan payments, and percentages, and a Hume Body Pod product overview is listed with them. Every converter and calculator runs in the browser and shows the formula it uses.
Converters
Weight
Convert kilograms, pounds, grams, and ounces.
Temperature
Convert Celsius, Fahrenheit, and Kelvin.
Length
Convert meters, feet, inches, kilometers, and miles.
Volume
Convert liters, milliliters, U.S. cups, and U.S. gallons.
Conversion pages
Weight
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Kilograms to pounds
Convert kilograms to pounds using the avoirdupois pound (0.45359237 kg).
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Pounds to kilograms
Convert pounds to kilograms using the same avoirdupois pound.
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Grams to ounces
Convert grams to avoirdupois ounces.
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Ounces to grams
Convert avoirdupois ounces to grams, not troy ounces.
Temperature
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Celsius to Fahrenheit
Convert a Celsius temperature to Fahrenheit.
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Fahrenheit to Celsius
Convert a Fahrenheit temperature to Celsius.
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Celsius to Kelvin
Convert Celsius to kelvin by adding 273.15.
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Kelvin to Celsius
Convert kelvin to Celsius by subtracting 273.15.
Length
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Feet to meters
Convert feet to meters. One international foot is 0.3048 m.
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Meters to feet
Convert meters to international feet.
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Inches to centimeters
Convert inches to centimeters. One inch is 2.54 cm.
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Centimeters to inches
Convert centimeters to inches using the 2.54 cm inch.
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Kilometers to miles
Convert kilometers to international miles (1609.344 m).
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Miles to kilometers
Convert miles to kilometers. One mile is 1.609344 km.
Volume
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Liters to gallons
Convert liters to U.S. gallons, not imperial gallons.
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Gallons to liters
Convert U.S. gallons to liters.
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Cups to milliliters
Convert U.S. cups to milliliters.
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Milliliters to cups
Convert milliliters to U.S. cups.
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Milliliters to fluid ounces
Convert milliliters to U.S. fluid ounces.
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Fluid ounces to milliliters
Convert U.S. fluid ounces to milliliters.