Calculate mean.
DescriptiveOpen
Sum Calculator – Add a List of Numbers
Quick answer
If values are 12, 15, 15, 18, 22, 27, 31, the sum is 140.
Sum = x₁ + x₂ + … + xₙ.
Enter your values
- 12
- 15
- 15
- 18
- 22
- 27
- 31
7 values
Sum
140
The tally worked out directly from the values you entered.
You enter Values 12, 15, 15, 18, 22, 27 … (7 values). You get Sum 140.
More in Descriptive
All Descriptive calculatorsCalculate median.
DescriptiveOpenCalculate count.
DescriptiveOpenCalculate minimum.
DescriptiveOpenCalculate maximum.
DescriptiveOpenCalculate range.
DescriptiveOpen
About the Sum Calculator – Add a List of Numbers
The sum is the total of all the numbers in a list. It is the first step in many other calculations, such as the mean, and is useful for totals of sales, marks, expenses or quantities. Enter your values to add them up.
For the starting values 12, 15, 15, 18, 22, 27 and 31, the sum is 140.
Sum
Sum = x₁ + x₂ + … + xₙ
Things to keep in mind
- Check for a value entered twice or missed, since a single slip changes the total.
- Divide the sum by the count to get the mean.
- Negative numbers reduce the total, so enter them with a minus sign.
STATISTICS & PROBABILITY GUIDE
A quick guide to Sum
Use it to get an accurate sum in seconds — free, with no sign-up.
Instant results
See your sum the moment you enter your numbers.
Free, no sign-up
Every calculator here is free to use, with no account required.
Accurate & transparent
The same standard formula runs on our server for every calculation.
How to Use the Sum Calculator
1
Enter Values
Provide your values.
2
View Your Results
Get your sum instantly, calculated on our server.
What is Sum?
This statistics & probability tool works out your sum instantly, so you don't have to do the math by hand.
“One quick calculation, so you always know your sum before you decide.”
What Affects Your Sum
Your sum depends on the values below.
Values
Changing your values changes your sum.
Example Result
Here's what you can expect from a sum calculation:
- Sum
- 140
Frequently Asked Questions
- How to calculate sum?
- Fill in values in the Sum Calculator – Add a List of Numbers above and your sum is calculated instantly. Change any value to see how the result responds.
- What does an example sum calculation look like?
- If values are 12, 15, 15, 18, 22, 27, 31, the sum is 140.
- Is this calculator free to use?
- Yes — every calculator on this site is completely free, with no sign-up or account required.
- How accurate is this calculator?
- It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
- Is my data saved anywhere?
- No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.
Customize this calculator
Pick a look, copy the code, and this Sum calculator — with its inputs and results — runs on your own website.
Theme color
Match your brand's colors
Corner style
Sharp, soft or fully rounded
Widget width
Compact, standard or full width
Live preview
Full widthThe same inputs, result and chart as the calculator above, styled with your choices.
yoursite.com