Sum Calculator
Calculate sum of numbers line by line
Sum Calculator
Enter numbers above ☝️
How to Use the Sum Calculator
Type one number per line in the textbox.
Example
1
3.14
30
The calculator will automatically sum all valid numbers.
You'll see the result below:
✅ Sum: 34.14
If any line contains non-numeric text, you'll see an error like:
❌ Line 3 is not a valid number: "abc"
When the "Ignore Non-Number Lines" checkbox is enabled:
- Invalid lines are skipped.
- Only valid numbers are summed.