Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Average Calculator
Calculate the arithmetic mean (commonly just called "the average") of up to five numbers — the simplest and most widely used measure of central tendency. Enter two to five values and the calculator returns their sum divided by the count of numbers entered. Missing or blank fields are excluded, so you can average just two or three values without having to fill all five. Useful for quickly averaging test scores, monthly expenses, sensor readings, or any small set of numbers where you want a single summary value that represents the group.
Percentage Calculator
Find what a given percentage of a number is — for example, 18% of a $42 restaurant bill, or 7.5% sales tax on a $129 purchase. This calculator handles the most common percentage question that comes up in everyday math: "what is P% of N?" Enter the percentage and the base number, and you get the exact partial amount. It is the building block behind tip calculators, discount calculators, tax calculators, and most quick financial estimates you do on the fly.
Key differences
| Average Calculator | Percentage Calculator | |
|---|---|---|
| Category | Math | Math |
| Inputs required | 5 | 2 |
| Result | Average (Mean) | Result |
| What it does | Calculate the arithmetic mean (commonly just called "the average") of up to five numbers — the simplest and most widely used measure of central tendency. Enter two to five values and the calculator returns their sum divided by the count of numbers entered. Missing or blank fields are excluded, so you can average just two or three values without having to fill all five. Useful for quickly averaging test scores, monthly expenses, sensor readings, or any small set of numbers where you want a single summary value that represents the group. | Find what a given percentage of a number is — for example, 18% of a $42 restaurant bill, or 7.5% sales tax on a $129 purchase. This calculator handles the most common percentage question that comes up in everyday math: "what is P% of N?" Enter the percentage and the base number, and you get the exact partial amount. It is the building block behind tip calculators, discount calculators, tax calculators, and most quick financial estimates you do on the fly. |