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How to Calculate a Tip: The Easy Method

The fastest tip method: find 10% by moving the decimal, then multiply. Here's the full breakdown plus a reference table.

The Fastest Method

Find 10%: move the decimal one place left. For a $47 bill, 10% = $4.70.

15% = $4.70 + $2.35 = $7.05. 20% = $4.70 × 2 = $9.40.

Reference Table

Bill10%15%20%25%
$30$3.00$4.50$6.00$7.50
$50$5.00$7.50$10.00$12.50
$75$7.50$11.25$15.00$18.75
$100$10.00$15.00$20.00$25.00
$150$15.00$22.50$30.00$37.50
$200$20.00$30.00$40.00$50.00

Tipping Guidelines

  • Restaurants: 18–20% is standard in the US.
  • Food delivery: 15–20%.
  • Rideshare: 15–20%.
  • Hairdressers: 15–20%.

Skip the math — use our tip calculator for the exact tip and split.

Tip Calculator