How much is a 20% tip on $45?

A 20% tip on $45 is $9. The total bill including tip is $54.

How do you calculate a 20% tip?

To calculate a 20% tip: Divide 20 by 100 to get 0.2. Multiply the bill amount ($45) by 0.2 to get $9.

Total with tip: $54

Convert the percentage to a decimal

20% ÷ 100 = 0.2

Multiply by the bill amount

$45 × 0.2 = $9

Add tip to the bill

$45 + $9 = $54

Tip = $45 × 0.2 = $9 | Total = $54

Use our free tip calculator for any numbers.