Length Converter
Convert between common length and distance units. Transform feet to meters, inches to centimeters, miles to kilometers, and more. Essential for construction, travel, and international measurements.
Reviewed by the SparkCalc editorial team
How We Calculate This
All conversions use meters as the base unit. 1 inch = 0.0254 m, 1 foot = 0.3048 m, 1 yard = 0.9144 m, 1 mile = 1609.344 m, 1 km = 1000 m.
Sources: BIPM — The metre (SI base unit of length) · NIST — Guide to the SI, Appendix B.8: Factors for Units Listed Alphabetically · NIST Office of Weights and Measures — Unit Conversion
Frequently Asked Questions
How many feet are in a meter?
1 meter equals approximately 3.281 feet. Conversely, 1 foot equals 0.3048 meters exactly.
How do I convert miles to kilometers?
Multiply miles by 1.609 to get kilometers. For example, 10 miles = 10 × 1.609 = 16.09 km.
What is the difference between metric and imperial?
Metric (meters, centimeters, kilometers) is based on powers of 10 and used worldwide. Imperial (feet, inches, miles) is used primarily in the US and UK for everyday measurements.
How many inches are in a foot?
There are exactly 12 inches in 1 foot. There are 36 inches in 1 yard and 63,360 inches in 1 mile.
Related Calculators
You might also find these calculators helpful: Area Converter, and Square Footage Calculator.
Embed this calculator
Add this free calculator to your own website. Copy the code below and paste it into your page’s HTML — it’s responsive and resizes to fit.