Tip Calculator
Calculate tip, total, and per-person amounts for a bill.
Calculators
Find a percentage of a number, calculate percentage increase or decrease between two values, or answer “X is what percent of Y?” All modes run instantly in your browser.
Enter values to calculate.
Use the Percentage Calculator form near the top of this page. Enter the values you know, run the tool, and review the results panel. You can change inputs and run it again. Processing stays in your browser and is not uploaded to Utilnivo servers.
Example: open Percentage Calculator, enter a realistic set of inputs for your situation, and note the primary result. Change one input—such as an amount, rate, or option—and compare how the output changes so you can choose a scenario that fits your needs.
Choose a percentage mode, enter the values, and calculate. Modes cover finding a percent of a number, reverse percentage, percent change, and increase or decrease by a percent. All math runs in your browser.
This tool runs in your browser for convenience. Results are estimates or transformations based on the inputs you provide and may not cover every edge case.
You can find a percentage of a number, calculate percentage increase or decrease between two values, or answer “X is what percent of Y?”
Yes. Values above 100% are allowed when that matches your inputs.
Percentage change divides by the starting value, so a starting value of zero is undefined.