How many in one?
Every page here answers one question in its first line, then gives you a converter, the formula and a table you can print. No sign-up, no popups, no waiting.
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- Length Inches, feet, yards, miles and their metric counterparts.
- Weight Ounces, pounds, stones, tons, grams and kilograms.
- Volume Teaspoons, cups, pints, quarts, gallons, milliliters and liters.
- Temperature Fahrenheit, Celsius and Kelvin.
Popular Conversions
- Feet to Meters 1 foot = 0.3048 meters
- Meters to Feet 1 meter = 3.28084 feet
- Inches to Centimeters 1 inch = 2.54 centimeters
- Centimeters to Inches 1 centimeter = 0.393701 inches
- Miles to Kilometers 1 mile = 1.609344 kilometers
- Kilometers to Miles 1 kilometer = 0.621371 miles
- Pounds to Kilograms 1 pound = 0.45359237 kilograms
- Kilograms to Pounds 1 kilogram = 2.20462 pounds
- Ounces to Grams 1 ounce = 28.3495 grams
- Grams to Ounces 1 gram = 0.035274 ounces
- Cups to Milliliters 1 cup = 236.588 milliliters
- Milliliters to Cups 1 milliliter = 0.00422675 cups
- Fluid Ounces to Milliliters 1 fluid ounce = 29.5735 milliliters
- Gallons to Liters 1 gallon = 3.78541 liters
- Liters to Gallons 1 liter = 0.264172 gallons
- Fahrenheit to Celsius 32 °F = 0 °C
- Celsius to Fahrenheit 100 °C = 212 °F
Questions People Ask
- How Many Feet in a Mile? There are 5,280 feet in one mile.
- How Many Inches in a Foot? There are exactly 12 inches in one foot.
- How Many Centimeters in an Inch? There are exactly 2.54 centimeters in one inch.
- How Many Ounces in a Pound? There are exactly 16 ounces in one pound.
- How Many Grams in an Ounce? There are 28.349523125 grams in one ounce, usually rounded to 28.35 grams.
- How Many Pounds in a Kilogram? There are 2.20462 pounds in one kilogram.
- How Many Ounces in a Cup? There are exactly 8 fluid ounces in one US cup.
- How Many Tablespoons in a Cup? There are exactly 16 tablespoons in one US cup.
- How Many Teaspoons in a Tablespoon? There are exactly 3 teaspoons in one US tablespoon.
- How Many Cups in a Quart? There are exactly 4 cups in one US liquid quart.
- How Many Cups in a Gallon? There are exactly 16 cups in one US gallon.
- How Many Milliliters in a Cup? There are 236.5882365 milliliters in one US customary cup, normally rounded to 237 mL.
Why Trust These Numbers
Every value comes from an exact legal definition rather than a rounded constant: the inch is exactly 2.54 centimeters, the pound exactly 0.45359237 kilograms, the US gallon exactly 3.785411784 liters. The conversion code is covered by an automated test suite that checks known benchmarks and verifies that every unit converts back to its original value.
Read how we calculate for the full list of definitions and rounding rules, or browse all conversions on one page. Cooking? The printable kitchen conversion chart covers every measurement an American recipe uses.
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Last updated . Checked against the exact definitions on our how we calculate page.