Free calculators that show their working
CalcRaven calculators give you the answer, the formula and every step in plain English, so you can check the maths yourself. Everything runs in your browser, so the numbers you type never leave your device.
- Updated
- Private: calculations run on your device
- Formula and working shown
Paycheck calculators
- Texas Paycheck CalculatorTexas take-home pay after federal tax, Social Security and Medicare, for 2026.
- Florida Paycheck CalculatorFlorida take-home pay after federal tax, Social Security and Medicare, for 2026.
- Nevada Paycheck CalculatorNevada take-home pay after federal tax, Social Security and Medicare, for 2026.
- Tennessee Paycheck CalculatorTennessee take-home pay after federal tax, Social Security and Medicare, for 2026.
- Washington Paycheck CalculatorWashington take-home pay after federal tax, Social Security and Medicare plus state deductions, for 2026.
- Overtime CalculatorOvertime and double-time pay for the week, plus how much may qualify for the 2025–2028 no-tax-on-overtime deduction.
Math calculators
- Percentage CalculatorFour percentage calculators in one: X% of Y, what percent X is of Y, find the whole, and percentage change.
- GCF CalculatorGreatest common factor of two or more numbers, with prime factorization and the Euclidean algorithm.
- Average CalculatorMean, median, mode and range of any list of numbers. Paste straight from a spreadsheet.
- Weighted Average CalculatorWeighted averages for grades, GPA, prices and scores, with a full working table.
Finance calculators
Why people use CalcRaven
- The working, not just the answerEvery result comes with the formula and the steps, so you can follow it, learn it or double-check it.
- Private by designCalculations happen on your device. We don’t collect or store the numbers you enter.
- Plain EnglishEach answer is written as a sentence you can copy, plus a real-life example of what it means.
- Free and accessibleNo sign-up, works on any phone or computer, with light and dark modes and screen reader support.
How we check our calculators
Every calculator uses standard, published formulas and is tested against worked examples before it goes live. Read our methodology and editorial standards for the details, or contact us if you spot a problem.