Get the answer, and see how it was worked out.
GPA, grades, percentages, fractions and statistics. Every calculator shows its steps, so you can check the method before you hand anything in.
Most used this week
- GPA CalculatorSemester GPA from letter grades and credits
- Weighted GPA CalculatorHigh school GPA with honors and AP classes
- Percentage CalculatorX% of Y, X is what % of Y, and more
- Percent Change CalculatorPercentage increase, decrease and difference
- Final Grade CalculatorScore you need on the final exam
- Standard Deviation CalculatorSample or population SD and variance
Grades & GPA
Work out your GPA, weighted GPA, cumulative GPA, final exam score and class grade.
Percentages
Percent of a number, percent change, discounts, margins and markups.
Fractions & numbers
Add, subtract, multiply and divide fractions, convert decimals, solve ratios and round numbers.
Statistics
Mean, median, mode, range, standard deviation and variance for any list of numbers.
How every calculator here is checked
- Each formula is written out on the page, with a worked example you can check by hand.
- Every tool is tested against known answers before it goes live, and re-checked when we change it.
- Grade scales follow the most common US 4.0 scale, and each page says where schools differ.
- Numbers you type stay in your browser; they are never sent to us.