Unit Converter

Convert length, weight, temperature, volume, time, data, speed, and energy units in your browser.

Unit category

Length converter

Convert metric and imperial distance units.

Result

1 Meter (m) = 3.28083989501 Foot (ft)

Quick conversions

What is the unit converter?

This utility converts length, weight, temperature, volume, area, speed, and other measurements between SI metric units and Imperial or US customary units. It is useful for travel, recipes, trade, science, real estate, fitness, and daily measurement problems.

Supported unit categories and formulas

Common conversions

  • Length includes km, m, cm, mm, mile, yard, foot, and inch. 1 inch = 2.54 cm and 1 mile = 1.609 km.
  • Weight includes ton, kg, g, mg, pound, and ounce. 1 pound = 453.592 g and 1 ounce = 28.35 g.
  • Temperature includes Celsius, Fahrenheit, and Kelvin. Fahrenheit = Celsius x 9/5 + 32, Celsius = (Fahrenheit - 32) x 5/9, and Kelvin = Celsius + 273.15.
  • Volume includes L, mL, cubic meter, gallon, quart, pint, cup, and fluid ounce. 1 gallon = 3.785 L and 1 cup = 236.588 mL in the US reference.
  • Area includes square kilometer, square meter, hectare, square mile, acre, square foot, and Korean pyeong. 1 pyeong = 3.305785 square meters.
  • Speed includes km/h, m/s, mph, ft/s, and knot. 1 knot = 1.852 km/h.

Example calculations

  • 75 F is about 23.9 C, useful when checking weather before a US trip.
  • 2 cups is about 473 mL in a US recipe; flour is more accurate by weight, and 1 cup is about 120 g in the source note.
  • 32 pyeong is about 105.8 square meters, commonly rounded to about 106 square meters.
  • 68 kg is about 149.9 lb for fitness apps that require pounds.

Accuracy and unit-system notes

Rules of thumb and standards

  • For quick mental estimates, subtract 30 from Fahrenheit and divide by 2 to approximate Celsius.
  • 1 mile is about 1.6 km, 1 km about 0.6 miles, 1 kg about 2.2 lb, 1 lb about 0.45 kg, 1 gallon about 3.8 L, and 1 L about 0.26 gallon.
  • Cooking references include 1 cup = 240 mL for water in a rough kitchen context, 1 tablespoon = 15 mL, 1 teaspoon = 5 mL, 350 F = 177 C, and one stick of butter = 113 g = 1/2 cup.
  • Absolute zero is 0 K = -273.15 C = -459.67 F.
  • Cup size differs by country: US 1 cup = 236.588 mL, UK 1 cup = 284.131 mL, and Korea/Japan 1 cup = 200 mL.
  • The source FAQ states formulas follow NIST and SI standards, with results normally shown to 2 to 4 decimal places.