// by seankriegler.com
Tip Calculator
Calculate tip amount and split the bill between people
10%
15%
18%
20%
25%
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Tip Amount
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Total
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Per Person
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Tip Per Person
// Tipping Norms
US: 15-20% standard, 25%+ for exceptional service. UK/SA: 10-15%. Many European countries include service charge. Japan: tipping is not customary and can be considered rude.
// Pre or Post Tax?
Technically, you should tip on the pre-tax amount. But most people tip on the total bill for simplicity. Either way is acceptable — the difference is usually small.
// Quick Math
For 10%: move the decimal left. For 15%: calculate 10% + half. For 20%: calculate 10% and double it. For 25%: divide the bill by 4.
// Splitting Bills
When splitting, consider rounding up per person to keep it simple. It's better to over-tip slightly than to leave the server short because of rounding errors.