Everyday Calculators

Free everyday calculators for tips, percentages, and unit conversions. Fast, simple tools that work right in your browser — no sign-up required.

Tip Calculator & Bill Splitter

Calculate the tip and split the bill evenly. See exactly what each person owes.

Calculate percentages instantly across three modes: find X% of Y, determine what percent X is of Y, or compute percentage change.

Split a shared tip pool among your staff evenly, by hours worked, or by role points. Every share adds up to the penny.

Find out what you need to score on your final to reach your target overall grade.

Enter each category's grade and weight to see your overall grade and letter grade.

Enter each course's letter grade and credit hours to see your GPA on the standard 4.0 scale.

Enter any two of original price, percent off, final price, or amount saved, and this calculator solves the other two.