Unit Converter
Unit Converter — runs in your browser. Inputs are not stored.
Unit converter
Converts as you type. 1 inch = 2.54 cm, 1 ft = 0.3048 m, 1 lb = 0.45359237 kg.
How to use
- Choose the conversion type (length, weight, or temperature).
- Entering a value on the left updates the right side immediately.
- Use swap left/right to reverse the conversion direction.
Key concepts: conversion factors
1 inch = 2.54 cm, 1 ft = 0.3048 m, 1 lb ≈ 0.45359237 kg. Temperature is °F = °C × 9/5 + 32. Use it to quickly align mixed units in overseas shopping, travel, or recipes.
Example
You can check 180 cm height in inches, 70 kg body weight in lb, and 25°C weather in °F right away. For pyeong ↔ m², use the pyeong converter.
Related: Pyeong converter · BMI calculator · Duty-free allowance calculator
Frequently asked questions
Does the unit converter include other units?
It supports length, weight, and temperature. For pyeong and m², use the <a href="/tools/pyeong-converter/">pyeong converter</a>.
How many decimal places?
Temperature shows two decimal places; other conversions show up to four.
Are values saved?
No. They disappear when you close the page.
How do I reverse the direction?
Press the swap left/right button to switch the input and result units.
Can I use it with BMI?
Convert height and weight to kg and cm, then enter them in the <a href="/tools/bmi/">BMI calculator</a>.
Last reviewed: 2026-09-04