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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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Setting the Number Delimiter
Customize the number separator here. (By default a line break.)
Running Sum
Display the sum as it's calculated step by step.
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
These options will be used automatically if you select this example.
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
These options will be used automatically if you select this example.
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
These options will be used automatically if you select this example.
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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