Percentage Calculator

  • Test Score Percentage Calculator
    Calculate your test score percentage instantly. Enter correct answers and total questions to see your grade percentage, correct and incorrect counts.
  • How Much More Percent Calculator
    Find out how much more A is than B in percent. Enter two values to instantly calculate the percentage increase from B to A with a worked example.
  • Subtract Percentage Calculator
    Subtract a percentage from any number instantly. Enter the original value and percent off to see the discounted result and the amount removed.
  • Completion Percentage Calculator
    Calculate completion percentage from completed vs total. Find what percent is done, how much remains, and the remaining percentage instantly.
  • Add Percentage Calculator
    Add a percentage to any number instantly. Enter a base value and a percent to get the amount added and the final increased total.
  • P% of What Number Equals X Calculator
    Find the whole number when a given percentage of it equals a known value. Enter the percent and the result to solve for the original number instantly.
  • Find the Whole From a Percentage Calculator
    Answer "X is P% of what number?" instantly. This reverse percentage calculator finds the whole (100%) from a known part and its percentage.
  • Increase From X to Y Percent Calculator
    Calculate the percentage increase or decrease from a starting value X to an ending value Y, plus the absolute difference. Fast and accurate.
  • Profit and Loss Percentage Calculator
    Calculate profit or loss percentage instantly from cost price and selling price. Enter CP and SP to see your profit/loss amount and percentage.
  • X is What Percent of Y Calculator
    Find out what percent X is of Y instantly. Enter two numbers to calculate the percentage using percent = (X ÷ Y) × 100.
  • Raise Percentage Calculator
    Calculate your pay raise percentage from your old and new salary. Enter both amounts to instantly see your percentage increase and raise amount.
  • Rent-to-Income Percentage Calculator
    Calculate what percentage of your gross monthly income goes to rent. Check affordability against the popular 30% rule with this free calculator.
  • Commission Percentage Calculator
    Calculate sales commission instantly. Enter your sale amount and commission rate to see exactly how much you earn and the net amount after commission.
  • Annual Percentage Growth (CAGR) Calculator
    Calculate the average percentage increase per year (CAGR) between a beginning and ending value over any number of years. Free, fast, and accurate.
  • Grade Needed on Final Calculator
    Calculate the grade you need on your final exam to reach your target course grade. Enter your current grade, goal, and final exam weight.
  • Win Percentage Calculator
    Calculate win percentage from wins, losses and ties. Ties count as half a win, matching standard sports win-loss record formulas.
  • Sales Tax Percentage Calculator
    Calculate sales tax on any price by percentage. Enter the price and tax rate to instantly see the tax amount and the total cost with tax included.
  • Percentage Yield Calculator
    Calculate the percentage yield of a chemical reaction from actual and theoretical yields. Free chemistry % yield calculator with formula and worked example.
  • Percent Error Calculator
    Free percent error calculator. Enter your measured and actual values to find percent error and absolute error with the standard formula instantly.
  • Fraction, Decimal & Percent Converter
    Convert a fraction a/b into its decimal and percent equivalents instantly. Free 3-way fraction, decimal and percent converter with worked examples.
  • Raw Score to Percentage Calculator
    Convert a raw test score to a percentage instantly. Enter correct answers and total questions to find your percent grade with this free calculator.
  • Discount Percentage Calculator
    Find the discount percentage from an original and sale price. Enter both prices to instantly see the % off and how much money you saved.
  • Savings Rate Percentage Calculator
    Calculate what percentage of your salary you save. Enter amount saved and income to instantly find your savings rate as a percentage.
  • Macro Percentage of Calories Calculator
    Convert grams of fat, protein and carbs into calories and find the percentage of total calories each macronutrient supplies. Free macro split calculator.

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