To convert centimeters to feet (cm to ft), multiply by 0.032808399. 1 centimeter equals 0.032808399 ft, about 1.7 times as much as a grain of rice.
| centimeters | feet |
|---|---|
| 1 centimeter | 0.032808 ft |
| 2 centimeters | 0.065617 ft |
| 5 centimeters | 0.16404 ft |
| 10 centimeters | 0.32808 ft |
| 25 centimeters | 0.82021 ft |
| 50 centimeters | 1.6404199 ft |
| 100 centimeters | 3.2808399 ft |
| 250 centimeters | 8.2020997 ft |
| 500 centimeters | 16.404199 ft |
| 1000 centimeters | 32.808399 ft |
Definition: 1/100 of a meter - the "centi" prefix doing the same job it does in "century" or "cent."
History: Introduced alongside the meter itself during the French Revolution's metric overhaul, the centimeter was designed from the start to be a convenient, everyday-sized subdivision - a meter is often too big and a millimeter too small for describing things like a person's height or a book's thickness.
Current use: Height, everyday object sizes, and fabric measurements across most of the world; also the standard unit doctors use internationally for body measurements.
Definition: 12 inches, or exactly 0.3048 meters.
History: The foot traces back to the Roman "pes," and different versions of it were used across Greek, Roman, English, Chinese, and French systems, each a slightly different length depending on who was measuring. English legend credits King Henry I with standardizing it in the 12th century using his own foot as the template - likely a booted foot, since people (and their footwear) tended to run smaller back then. It took until 1959 for the US, UK, and four other countries to finally agree on one exact, shared definition.
Current use: Building and construction measurements, room dimensions, and aircraft altitude are still commonly given in feet, even in countries that otherwise use metric.
The relationship is exact, 1 ÷ 30.48, but no decimal can express it exactly. 0.032808399 is rounded, and so is every other decimal you will see for it.
No simple round multiplier is close enough to be useful, so this is one to look up rather than estimate. When it matters, use the exact relationship: 1 ÷ 30.48. Its decimal never terminates, so 0.032808399 is already rounded.
Going the other way, one foot is 30.48 cm, which is usually the easier direction to work in. Because the forward factor is small, watch the decimal place rather than the digits: a factor-of-ten slip is the common error, not a rounding one.
To anchor the scale: 50 centimeters is about 1.64 ft.