Length Converter: convert mm, cm, m, km, inches, feet, yards, and miles instantly.
Convert length units instantly — cm to inches, feet to meters, or km to miles. Perfect for everyday measurements, travel, construction, and quick distance conversions.
Most Common Conversion Factors
| m | cm | in | ft | |
|---|---|---|---|---|
| 1 m | 1 | 100 | 39.370079 | 3.28084 |
| 1 cm | 0.01 | 1 | 0.393701 | 0.032808 |
| 1 in | 0.0254 | 2.54 | 1 | 0.083333 |
| 1 ft | 0.3048 | 30.48 | 12 | 1 |
Length Converter FAQs
A length converter converts distance units such as mm, cm, m, km, inches, feet, yards, and miles. It is useful for everyday measurements, construction, travel, engineering, and science.
Enter a value, choose cm as the source unit, and choose inches as the target unit. For reference, 1 inch = 2.54 cm, which is commonly used for height, screens, and product dimensions.
Enter the value, select m as the source unit, and select feet as the target unit. For example, 1 meter ≈ 3.281 feet, which is widely used in construction and real-world measurements.
Metric units like mm, cm, m, and km are based on powers of 10 and used worldwide. Imperial units like inches, feet, yards, and miles are commonly used in the US and UK.
Common conversions include cm to inches, inches to cm, meters to feet, feet to meters, and km to miles. These are frequently used in everyday tasks, travel, construction, and product sizing.
Use a length converter when measuring distances, comparing product dimensions, converting building plans, planning travel distances, working with maps, or switching between metric and imperial systems.
No. Length measures distance in one dimension (e.g., m or ft). Area measures surface (m²), and volume measures space (m³).
