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Length
1 in = 2.54 cm
1 m = 3.281 ft
1 mile = 1.609 km
The everyday Imperial⇄Metric unit translator
Make sense of any measure.
Fast metric and imperial conversions for the kitchen, workshop, road trip, and everything in between.
Metric ↔ ImperialSix handy toolsNo fuss, ever
DIAL 01
Length conversion
1 meter = 3.28084 feet
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Quick reference
Useful, not fussy.
Common conversions at a glance — the ones worth keeping in your back pocket.
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Weight
1 oz = 28.35 g
1 kg = 2.205 lb
1 stone = 6.35 kg
°
Temperature
0 °C = 32 °F
20 °C = 68 °F
100 °C = 212 °F
A result you can put to use.
Choose a measurement type, enter a value, and select the starting and destination units. The result updates as you type. Swap reverses the units and uses the displayed result as the new input. The popular buttons load a worked starting point that you can change.
Length, weight, volume, area, and speed use a ratio between units. Temperature also needs an offset: 20 °C is 68 °F, but a rise of 20 °C is a rise of 36 °F. This tool converts temperature readings, not temperature differences.
Kitchen measurements
Volume units marked US mean US customary liquid measures. A US cup is about 236.6 mL; a 250 mL metric cup and a UK imperial pint are different measures. Ounces measure mass, while fluid ounces measure volume. You cannot convert a cup of flour to grams without knowing the ingredient and how it was measured.
Avoid cup and ounce mix-ups →Rooms, shelves, and distances
Enter decimal values: 5 feet 6 inches is 5.5 feet, not 5.6 feet. For flooring, multiply length by width in the same unit, then convert the area. A square-foot conversion uses the length factor twice.
Work through length and area →Precision that makes sense
Extra digits do not make your original measurement more accurate. A rough tape-measure reading still has the same uncertainty after conversion. Keep intermediate digits, then round the final result to a useful level for your task.
Understand rounding and limits →What the converter supports
Use Length for millimeters through miles; Weight for grams, kilograms, everyday ounces, pounds, and stone; Volume for liters and US liquid measures; Temperature for Celsius, Fahrenheit, and kelvin; Area for square units, acres, and hectares; and Speed for km/h, mph, m/s, and knots. Weight uses ordinary avoirdupois units, not troy ounces. The converter does not estimate ingredient density, fuel economy, clothing sizes, or construction waste.
Read the worked conversion guide · About Metric Flip and its calculations