# Number sum calculator

## World's simplest number tool

Quickly calculate the sum of numbers in your browser. To get your sum, just enter your list of numbers in the input field, adjust the separator between the numbers in the options below, and this utility will add up all these numbers. Created by developers from team Browserling.

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Number sum calculator tool
What is a number sum calculator?

This is an online browser-based utility for calculating the sum of a bunch of numbers. You can enter numbers separated by a comma, space, or any other character, including the line break. The input sequence of values can contain positive and negative numbers, integers and fractions. Regardless of the input set, this tool finds the total sum. You can also activate the "Print Running Sum" option, which shows how the sum changes at each step when calculating the sum of multiple numbers. That's numberwang!

Number sum calculator examples
Click to use

Sum of Ten Positive Numbers

In this example, we calculate the sum of ten positive integers. These integers are listed as a column and their total sum equals 19494.

0
1
20
33
400
505
660
777
8008
9090

19494

**Required options**

Customize the number separator
here. (By default a line break.)

Display the sum as it's
calculated step by step.

Sum of Integers and Decimals

In this example, we add together ninety different values – positive numbers, negative numbers, integers and decimal fractions. We set the input separator to a comma and after adding all of them together, we get 0 as output.

1, 2, 3, 4, 5, 6, 7, 8, 9, -1.1, -2.1, -3.1, -4.1, -5.1, -6.1, -7.1, -8.1, -9.1, 10, 20, 30, 40, 50, 60, 70, 80, 90, -10.2, -20.2, -30.2, -40.2, -50.2, -60.2, -70.2, -80.2, -90.2, 100, 200, 300, 400, 500, 600, 700, 800, 900, -100.3, -200.3, -300.3, -400.3, -500.3, -600.3, -700.3, -800.3, -900.3, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, -1000.4, -2000.4, -3000.4, -4000.4, -5000.4, -6000.4, -7000.4, -8000.4, -9000.4, 10001, 20001, 30001, 40001, 50001, 60001, 70001, 80001, 90001, -10000, -20000, -30000, -40000, -50000, -60000, -70000, -80000, -90000

0

**Required options**

Customize the number separator
here. (By default a line break.)

Display the sum as it's
calculated step by step.

Running Sum of Numbers

In this example, we calculate the sum of all ten digits and enable the option "Print Running Sum". We get the intermediate values of the sum in the process of addition. Thus, we have the following sequence in the output: 0, 1 (0 + 1), 3 (0 + 1 + 2), 6 (0 + 1 + 2 + 3), 10 (0 + 1 + 2 + 3 + 4), and so on.

0
1
2
3
4
5
6
7
8
9

0
1
3
6
10
15
21
28
36
45

**Required options**

Customize the number separator
here. (By default a line break.)

Display the sum as it's
calculated step by step.

Pro tips
Master online number tools

You can pass input to this tool via

__?input__query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinenumbertools.com/calculate-number-sum

__?input__=0%0A1%0A20%0A33%0A400%0A505%0A660%0A777%0A8008%0A9090&input-separator=%5Cn&running-sum=false
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