Instant percentage calculators — zero fluff, pure math
10 free percentage calculators for everyday math. Tips, discounts, markups, GPA, and more. No sign-ups, no ads — just fast answers.
What is X% of Y? Instantly calculate any percentage of any number.
Calculate now →Calculate the percentage change between two values — increase or decrease.
Calculate now →Increase a number by a given percentage. See the new value and the amount added.
Calculate now →Decrease a number by a given percentage. See the new value and the amount removed.
Calculate now →Convert any fraction to its percentage equivalent. Enter numerator and denominator.
Calculate now →Convert any percentage to a simplified fraction and its decimal form.
Calculate now →Calculate restaurant tips with custom percentages and split the bill among friends.
Calculate now →Calculate the final price after one or two discounts. See your total savings.
Calculate now →Calculate selling price from cost and markup, or find margin from selling price.
Calculate now →Calculate your weighted GPA from letter grades and credit hours. Supports A+ through F.
Calculate now →Every calculator runs client-side in your browser. Enter values, get results immediately. No server round trips, no loading spinners.
Every result shows the formula used. Understand the math, not just the answer. Great for students, professionals, and anyone who wants to learn.
Mobile-first design that works perfectly on any device. Quick percentage answers at the store, in a meeting, or doing homework.