All Percentage Calculators
Free online calculators for every type of percentage problem. Pick the one you need — each shows the formula and solution step by step.
How to Calculate Percentage
Learn how to calculate percentage of any number with this free calculator. Enter a percentage and a number to get an instant result with the formula worked out step by step.
How to Calculate Percentage Increase
Calculate percentage increase between two values instantly. Enter the old and new values to see the percentage increase with the full formula shown step by step.
How to Calculate Percentage of a Number
Find what any percentage of a number is. Enter a percentage and a number to get an instant answer — perfect for discounts, taxes, tips, and everyday math.
How to Calculate Percentage Change
Calculate the percentage change between any two values. See whether the change is an increase or decrease, with the complete formula worked out step by step.
How to Calculate Percentage in Excel
Learn the Excel formulas for calculating percentages: percentage of a number, percentage change, increase, and decrease. Try them here first, then use the same logic in Excel.
How to Calculate Percentage Error
Calculate how far an experimental or measured value deviates from the accepted theoretical value. Essential for science labs, engineering, and quality control.
How to Calculate Percentage Using Division
Divide the part by the whole and multiply by 100 to get a percentage. Enter any two numbers and instantly see the percentage with a step-by-step breakdown.
How to Calculate Percentage of Money
Calculate any percentage of a money amount — discounts, tips, taxes, and savings. Enter the price and percentage to see your result instantly.
How to Calculate Percentage Decrease
Calculate the percentage decrease of any value. Enter the number and percentage to see the decreased result with step-by-step math shown instantly.
How to Calculate Percentage Difference
Compare two values and find the percentage difference between them relative to their average. Useful when neither value is the clear baseline.
How to Calculate Body Fat Percentage
Estimate your body fat percentage using the U.S. Navy method. Enter your measurements to get your body fat estimate and fitness category — no calipers needed.
How to Calculate Average Percentage
Calculate the average of up to five percentages. Enter your values and get the mean percentage instantly — useful for averaging test scores, ratings, or growth rates.
How to Calculate Grade Percentage
Enter your marks and total to calculate your grade percentage and letter grade. Works for any test, exam, assignment, or course evaluation.
How to Calculate Profit Percentage
Calculate profit or loss percentage from cost price and selling price. Instantly see whether you made a profit or loss, with the formula shown step by step.
How to Convert Fraction to Percentage
Convert any fraction to a percentage instantly. Enter the numerator and denominator and see the percentage result with the division worked out step by step.
Tip Calculator
Calculate the tip on any bill, see the total, and split it evenly among any number of people. Choose your tip percentage and get instant results.
BMI Calculator
Calculate your Body Mass Index (BMI) from your weight and height. See your BMI category — underweight, normal, overweight, or obese — with the formula shown step by step.
Discount Calculator
Enter the original price and discount percentage to instantly see your savings and final price. Works for any store sale, coupon, or promotional discount.