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Length Converter

Convert length units in your browser: inches to cm, feet to cm, meters to feet, cm to inches, and more. Fast, accurate, and runs entirely on your device.

Common conversions

1 Inch = 2.54 Centimeter

Handy conversions to remember

  • 1 inch = 2.54 cm
  • 1 foot = 30.48 cm
  • 1 meter = 100 cm
  • 1 meter ≈ 3.28084 ft
  • 1 yard = 91.44 cm

The conversion runs in your browser only. No value is sent to a server or saved.

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Quick answer: this is a free length unit converter that switches between inches, centimeters, millimeters, meters, kilometers, feet, and yards right in your browser. Type a value, pick the unit you have and the unit you want, and the result updates instantly. It is handy for online shopping from foreign stores (screen and TV sizes in inches), DIY and home projects (feet and yards in install guides), ordering clothes from abroad, and everyday metric-to-imperial conversions. Every factor is based on the international definitions (1 inch = 2.54 cm exactly, 1 foot = 30.48 cm exactly), so the numbers are precise. Nothing is uploaded, there is no signup, and no data is stored. Last updated: May 2026.

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How to use this tool

  1. 01Type a valueIn the "Value to convert" field, enter a number. Whole or decimal numbers both work, for example 1, 0.5, or 2.75.
  2. 02Pick the source and target unitsChoose the unit you are converting from and the unit you are converting to. The "Common conversions" buttons set a ready-made pair in one click.
  3. 03Read the result instantlyThe result appears automatically. Use "Swap" to flip the direction, "Copy result" to copy it to your clipboard, or "Clear" to start over.
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When is this useful?

  • Screen or TV size in inchesDisplay makers quote size in inches. The tool shows the diagonal in centimeters, which is easier to compare against the space on your wall.
  • Ordering clothes and shoes from abroadForeign size charts often list measurements in inches or feet. Converting to centimeters helps you pick the right size with confidence.
  • DIY, renovation, and home projectsMany install guides and product specs use feet or inches. The tool converts them quickly to centimeters or meters so measurements match your tape.
  • Picture frames and printsIf you ordered a print sized in inches, the tool shows the equivalent in centimeters so you can buy a frame that fits.
  • Travel and reading foreign signsHeights, distances, and dimensions abroad are often given in feet, yards, or meters. Converting between metric and imperial makes them easy to picture.
  • School and homeworkStudents converting between the metric system and imperial units get exact answers, with the conversion factors based on the official definitions.
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Examples

  • 1 inch in centimeters1 inch = 2.54 cm exactly. This is the international definition, in force since 1959, and it is the most common conversion people look up.
  • 1 meter in feet1 meter ≈ 3.28084 feet. So a 2-meter doorway is about 6.56 feet tall. The reverse: 1 foot = 0.3048 m exactly.
  • A 55-inch screen55 inches = 139.7 cm. That is the diagonal of the screen, not the width. Worth remembering when choosing a wall mount.
  • A height of 6 feet6 feet = 182.88 cm. This is common on US sites that describe a person's height.
  • An 8x10 inch photo8 inches = 20.32 cm and 10 inches = 25.4 cm, so a matching frame is roughly 20x25 cm.
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Tips for a better result

  • Conversions worth memorizing1 inch = 2.54 cm exactly. 1 foot = 30.48 cm exactly. 1 yard = 91.44 cm exactly. 1 meter ≈ 3.28084 feet. These cover most everyday needs.
  • Flip the direction in one clickIf you picked inches to centimeters when you meant centimeters to inches, the "Swap" button reverses the direction without retyping anything.
  • Precision and roundingThe result shows up to 6 decimal places, more than enough for any practical use. If you need fewer digits, round the result yourself.
  • Diagonal, not widthA screen or TV size in inches refers to the diagonal of the panel, not its width. Keep that in mind when fitting a display to a space.

  • Metric vs. imperial

    The metric system (millimeter, centimeter, meter, kilometer) is built on powers of ten: 1 cm = 10 mm, 1 m = 100 cm, 1 km = 1000 m. It is used by most of the world for everyday measurement. The imperial / US customary system (inch, foot, yard) is common in the United States and shows up on product packaging, screen sizes, and clothing charts worldwide. Because the two systems do not line up on round numbers, a converter is the fastest way to move between them without doing the arithmetic by hand.

  • Common length conversions

    The pairs people look up most, with their exact factors: 1 inch = 2.54 cm (1 cm = 0.3937 in) 1 foot = 30.48 cm (1 cm = 0.0328 ft) 1 meter = 3.28084 ft (1 foot = 0.3048 m) 1 meter = 39.3701 in (1 inch = 0.0254 m) 1 inch = 25.4 mm (1 mm = 0.03937 in) 1 yard = 0.9144 m (1 m = 1.09361 yd) 1 cm = 10 mm and 1 km = 1000 m. To convert inches to cm multiply by 2.54; for cm to inches divide by 2.54. The same logic works in reverse for every pair.

  • How the tool calculates

    Every conversion is based on exact international factors: 1 inch = 0.0254 meter (by definition), 1 foot = 0.3048 meter (= 12 inches), 1 yard = 0.9144 meter (= 3 feet). The metric units are exact powers of ten: 1 cm = 0.01 m, 1 mm = 0.001 m, 1 km = 1000 m. The tool converts through meters as a base unit: each value is first turned into meters, then from meters into the target unit. There is no rounding inside the math, only at the final display.

  • What the tool supports, and what it does not

    The tool supports metric length units (mm, cm, m, km) and the common imperial units (inch, foot, yard). It does not convert miles, nautical miles, or other rarer length units, and it does not handle area (square meters) or volume (liters / gallons). Those would need separate tools.

  • Privacy

    Everything happens in your browser. The numbers you type, the units you pick, and the result are not saved, not uploaded to a server, and not sent to analytics. Refreshing the page resets everything. There is no signup and no tracking of your values.

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Frequently asked questions

How many centimeters are in an inch?

1 inch equals exactly 2.54 centimeters. This international definition has been in force since 1959. To go from inches to cm, multiply by 2.54; to go from cm to inches, divide by 2.54.

How do I convert meters to feet?

Multiply meters by about 3.28084 to get feet. For example, 2 meters ≈ 6.56 feet. The reverse: 1 foot = 0.3048 meter exactly, so multiply feet by 0.3048 to get meters.

How do I convert cm to inches?

Divide centimeters by 2.54. For example, 30 cm ≈ 11.81 inches. The tool does this instantly and shows the result the moment you type a value.

What is the difference between a yard and a meter?

1 yard = 0.9144 meter, so a yard is about 8.56 cm shorter than a meter. One yard equals exactly 3 feet or 36 inches.

How do I convert feet to cm?

Multiply feet by 30.48 to get centimeters, since 1 foot = 30.48 cm exactly. For example, 5 feet = 152.4 cm. To go the other way, divide centimeters by 30.48.

How many feet are in a meter?

1 meter ≈ 3.28084 feet. The reverse is exact: 1 foot = 0.3048 meter. So to turn meters into feet, multiply by 3.28084.

How do I convert inches to mm?

Multiply inches by 25.4 to get millimeters, because 1 inch = 25.4 mm exactly. For example, 3 inches = 76.2 mm. To go from mm to inches, divide by 25.4.

How many meters are in a yard?

1 yard = 0.9144 meter exactly. The reverse is 1 meter ≈ 1.09361 yards. A yard is a little shorter than a meter.

How many millimeters are in a centimeter?

1 cm = 10 mm exactly. To convert cm to mm multiply by 10, and to convert mm to cm divide by 10.

How many meters are in a kilometer?

1 km = 1000 m exactly. To convert kilometers to meters multiply by 1000, and to convert meters to kilometers divide by 1000.

How precise are the results, and how are they rounded?

The conversion factors are exact international definitions, and the math is done in full precision. The result is shown to up to 6 decimal places with trailing zeros trimmed, which is more than enough for any practical use.

Does the tool support miles or kilometers to miles?

Not in this version. It supports millimeters, centimeters, meters, kilometers, inches, feet, and yards. Miles and other units may be added later if there is demand.

Is anything uploaded or stored?

No. Every conversion runs locally in your browser. The values you enter, the units you choose, and the result are never uploaded to a server, saved, or sent to analytics.

Is the tool free?

Yes. It is free to use, with no signup and no usage limit.

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