Tip Calculator
For those moments when you need a quick answer — without lighting up the whole table.
Built for the table, not the spotlight
You've just finished a great meal. Maybe a cocktail or two. The check arrives and suddenly everyone's supposed to know what 18% of $73.40 is. Nobody wants to look like they can't do the math — but after a full belly and a good drink, fast mental gymnastics just aren't that appealing.
BehCalc is designed to be quick and inconspicuous. Dark screen, two fields, instant answer. Pull up your phone, punch in the numbers, pocket it — nobody at the table needs to know. No app to download, no account to create, no bright white screen lighting up the restaurant.
The rounding feature is what makes it actually useful at the table. Instead of staring at "$14.27" and doing more math in your head, BehCalc shows you the tip rounded up and rounded down to a clean dollar total — so you know exactly what to write on the receipt line without a second thought.
Just a fast, free calculator that lives in your browser. Learn more →