単位換算
単位を換算
ブラウザで動作 · アップロード不要
このツールとページ内の説明は、現在は英語のみです。動作は同じで、すべてブラウザ内で実行されます。
–
In every unit
お使いのブラウザはこのツールを動かすには古すぎます。更新するか、最新の Chrome、Edge、Firefox、Safari をお使いください。
- 何も端末から出ません
- サーバーによるサイズ制限なし
- 登録不要・透かしなし
- 無料
How to convert units
- Choose what to convert, such as length or temperature.
- Type the value and pick the two units.
- Read the result and the formula, or see the value in every unit below.
Common conversions
| From | To | Multiply by |
|---|---|---|
| inches | centimetres | 2.54 (exact) |
| feet | metres | 0.3048 (exact) |
| miles | kilometres | 1.609344 (exact) |
| pounds | kilograms | 0.45359237 (exact) |
| US gallons | litres | 3.785411784 |
| °C to °F | × 9/5, then + 32 |
Good to know
- US and UK gallons, pints and fluid ounces are different sizes; both are listed.
- Temperature isn't a simple multiplication, because the scales start at different points; the formula is shown with the result.
- Litres per 100 km works the other way round from miles per gallon: a lower number is better.
- You can type 1,5 or 1.5: both are read as one and a half.
よくある質問
How exact are the results?
The factors are the official exact definitions where they exist (an inch is exactly 2.54 cm). Results are rounded to 10 significant digits for display.
Is anything sent anywhere?
No. The calculation happens in your browser as you type; nothing is sent anywhere.