Unit Converter
Length, weight, temperature, data, and more.
1 mm = 0.1 cm
Runs entirely in your browser — nothing you enter is uploaded or sent to a server.
Conversions use standard factors and are rounded for display — for engineering, legal or trade use where exact precision matters, verify against an official reference. Read our full disclaimer.
About this tool
A single converter for the measurements you use most: length (cm, inch, m, ft, mile), weight (kg, lb, g, oz), temperature (°C, °F, K), data (KB, MB, GB, KiB…), speed, volume, area, and time. Pick a category, choose your units, and the result updates as you type.
Try it
1 inch = 2.54 cm, 1 kg ≈ 2.2046 lb, 100 °C = 212 °F, and 1 GB = 1000 MB.
How to use
- 1Pick a category (length, weight, temperature…).
- 2Choose the 'from' and 'to' units.
- 3Type a value — the converted result appears instantly.
- 4Use the swap button to reverse the direction.
Features
- Eight categories covering the everyday conversions.
- Both SI (1000) and binary (1024) data units.
- Accurate temperature conversion (°C / °F / K).
Frequently asked questions
What are the most common conversions?
kg ↔ lb, cm ↔ inch, miles ↔ km, °C ↔ °F, and MB ↔ GB are the ones people look up most — all included here.
What's the difference between GB and GiB?
GB is 1000-based (1 GB = 1,000,000,000 bytes); GiB is 1024-based (1 GiB = 1,073,741,824 bytes). The tool offers both.
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