数字求和
数字求和；输入、输出与参数范围在实施前细化。
使用步骤
如何使用
- 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.
常见问题
你可能还想知道
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.