Sum Numbers
「Sum Numbers」はコード、データと QRに使えるブラウザツールです。入力内容と結果は通常この端末内で処理され、登録は必要ありません。
使い方
使い方
- Enter one or more decimal numbers using commas, spaces, semicolons, or new lines.
- Select Sum numbers and review the validated count and total.
- Copy the total for your spreadsheet, calculation, or notes.
Flexible separators
Separate values with commas, spaces, semicolons, or line breaks. A value may start with a plus or minus sign and may use a decimal point.
Clear input limits
Up to 10,000 values are accepted. Each value must be a finite decimal with no more than 15 digits after the decimal point and remain within JavaScript’s safe numeric range.
Private browser calculation
Parsing, validation, addition, and copying happen locally in your browser. Your numbers are not uploaded or stored by this page.
よくある質問
あわせて知りたいこと
Which separators can I use?
Use commas, spaces, semicolons, or line breaks. You can mix them in the same input.
Can I sum negative numbers and decimals?
Yes. Signed whole numbers and decimal values are supported.
How many values can I enter?
The tool accepts up to 10,000 values in one calculation.
Does the tool upload my numbers?
No. The calculation runs entirely in your browser.