Unit Converter

Convert between units of length, weight, temperature, volume, area, and speed.

By Konstantin Iakovlev · Updated September 2026 · Source: NIST Special Publication 811, Guide for the Use of the SI, Appendix B.8 (conversion factors)

Category

Result

0.3048

Meters (m)

Conversion

Formula1 ft = 0.3048 m
FromFeet (ft)
ToMeters (m)

Use the Unit Converter above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only. Results are estimates based on the information you provide and the assumptions described on this page.

How It Works

Measurement systems rarely line up, and that mismatch creates friction everywhere from shipping manifests to kitchen recipes. A reliable way to move between length, weight, temperature, volume, area, and speed is genuinely useful. The converter handles those swaps cleanly, helping a DIY hobbyist and a frequent business traveler alike sidestep the costly mistakes that come from eyeballing a conversion.

Each conversion rests on an established ratio or constant tied to the specific unit pair. Turning meters into feet means multiplying by a fixed factor of roughly 3.28084, while Celsius to Fahrenheit follows the formula (C * 9/5) + 32. A comprehensive table of these relationships sits behind the interface, so every transformation across the supported categories comes out precise and repeatable.

Confirm both the unit you're converting from and the one you're converting to before trusting the result, because slipping from meters to miles is an easy and consequential mix-up. Significant figures deserve a thought as well: the tool reports high precision, yet real measurements carry their own limits. Temperature is a special case, since the scales place absolute zero at different points, and that means a plain ratio won't serve every conversion.

Example: Shipping an International Package

  1. 1 A package weighs 5 kilograms and has dimensions of 0.5 meters x 0.3 meters x 0.2 meters. The shipping company requires weight in pounds and dimensions in inches.
  2. 2 Using the converter: 5 kg = 11.0231 lbs. For dimensions: 0.5 m = 19.685 inches, 0.3 m = 11.811 inches, 0.2 m = 7.874 inches.
  3. 3 The package weighs 11.02 lbs and measures 19.69" x 11.81" x 7.87".
  4. 4 This allows for accurate input into the shipping company's system, preventing potential delays or recalculations of shipping costs.

Frequently Asked Questions

How do I convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 (or 1.8), then add 32. For example, 25°C = (25 x 1.8) + 32 = 77°F. A quick estimate: double the Celsius, then add 30.
How many grams are in an ounce?
One ounce equals approximately 28.35 grams. One pound (16 ounces) equals about 453.6 grams. One kilogram equals approximately 2.205 pounds.
How do I convert miles to kilometers?
Multiply miles by 1.609 to get kilometers. Conversely, multiply kilometers by 0.621 to get miles. A quick approximation: 5 miles is about 8 kilometers.