Solve everyday percentage problems instantly: find what X% of Y is, determine what percent one number is of another, compute percentage increase or decrease, and calculate tips including per-person splits. All calculations happen right in your browser — no data leaves your device.
Yes, the tool rounds monetary values to two decimal places. You can rely on it for real-world check splitting.
For percentage change, both numbers are accepted, but they must be valid. Negative inputs in other modes will be treated as zero or flagged, depending on the mode.
Yes, after the page is loaded the entire calculator operates without an internet connection.