PercentSnap
Fast, free percentage calculators for shopping, business, and everyday math. Snap your answer in seconds — no signup, no fluff.
Shopping & Everyday
Percentage Calculator
Find value, percent, or base — three calculators in one
Sales Tax Calculator
Add or remove tax for any US state or custom rate
Percentage Off Calculator
Find the sale price and savings for any percentage discount
Price Per Unit Calculator
Compare two products to find the better deal per unit
Discount Calculator
Single or stacked discounts — find the real final price
Tip Calculator
Calculate tip amount and split the bill between any number of people
Business & Pricing
Math & Statistics
Percentage Calculators Built for Real Shopping
Whether you're standing at a store shelf comparing two package sizes, calculating how much you'll save in a sale, or figuring out the right tip at a restaurant, percentage math is everywhere. PercentSnap puts every tool you need in one fast, mobile-friendly place.
Our percentage off calculator and discount calculator are designed for shopping — they show the exact dollar savings and final price instantly. The sales tax calculator covers all 50 US states and lets you reverse-calculate the pre-tax price from a total.
For grocery shopping, the price per unit calculator compares two products side-by-side — perfect for figuring out if the bigger size is actually a better deal. And the tip calculator handles bill splitting for any group size.
Sellers and business owners can use the markup calculator and gross margin calculator to set profitable prices. For general percentage math — "what is X% of Y?", "X is what % of Y?", or "X is Y% of what?" — the percentage calculator covers all three in one page.
How Our Calculators Work
- ✓All calculations run entirely in your browser
- ✓Nothing you type is sent to a server or stored
- ✓Each result includes the formula so you can verify it
- ✓No account required — open and calculate in seconds
- ✓Tested on both iOS Safari and Android Chrome
Also Available as a Chrome Extension
All 10 calculators work in a browser popup — including sales tax, unit price comparison, percentage calculator, and gross margin. No tab switching while you shop. Search "PercentSnap" in the Chrome Web Store.