Convert length and distance between km, miles, meters, yards, feet, and inches. Simple and intuitive. Input never leaves your device — everything runs locally in your browser.
Content reviewed October 2026 · About Toolzum
Convert area between square meters, square feet, acres, hectares, and square kilometers. Input never leaves your device — everything runs locally in your browser.
Convert between hundreds of units — length, mass, volume, temperature, area, speed, time, digital data, and more with a single click.
Convert between time units including seconds, minutes, hours, days, weeks, months, and years with precise decimal results. Input never leaves your device — everything runs locally in your browser.
Convert screen sizes between inches, cm, resolution, and aspect — compare displays honestly. Check a 27-inch 4K pixel density — free, local, no signup.
Compute running pace and speed from distance and time in km or miles. Check splits for a 5K tune-up — free, local, no signup.
1 meter = 3.28084 feet. The converter uses this exact factor for all length calculations.
1 inch = 2.54 cm exactly. This is an international agreement — not an approximation.
A marathon is 42.195 km, which equals approximately 26.2 miles. The exact distance was standardized in 1921.
Converting between metric and imperial lengths — for example, feet to meters for construction, inches to centimeters for screen sizes, or miles to kilometers for running distances.
Yes. All conversions run in your browser using JavaScript. No data is sent to any server.