Everyday calculators
9 free tools
The quick money math you do all the time — tipping, splitting a bill, checking a sale price, or sorting out sales tax. Fast answers, no fuss.
Drop in the total, add a tip if you like, and see the even per-person share in a tap.
Swap between cups, tablespoons, teaspoons, fluid ounces, and milliliters without a conversion chart.
See the sale price and how much you save from a percent-off deal.
Enter the miles, your car's MPG, and the pump price to see what a trip actually costs to drive.
Divide miles driven by gallons used to get your true MPG, plus what each mile costs in fuel.
Type the bill, tap a common rate, and get the gratuity and grand total for a service.
Add sales tax to a price, or pull the tax back out of a total.
Work out the tip and split a bill fairly between any number of people.
Enter two prices and sizes to see the real price per unit, so the bigger box only wins if it's cheaper.
Frequently asked questions
What counts as an everyday calculator?
The quick money math that comes up at a restaurant, a checkout, or a sale rack — working out a tip, splitting a bill, checking a discount, or figuring the tax on a purchase. Small sums, but the ones you actually do most often.
Do these handle splitting a bill between friends?
Yes. The Tip Calculator splits the total across any number of people and shows the exact amount each person owes, tip included, so nobody has to do the awkward napkin math.
Can I work backwards from a total that already includes tax?
The Sales Tax Calculator does both directions. Add tax to a pre-tax price, or start from a receipt total and pull the tax back out to see the original amount.