20% Tip on $45 — Quick Answer

A 20% tip on $45 is $9

Total: $45 + $9 = $54

Tip Amounts on a $45 Bill

Tip %Tip AmountTotal
15%$7$52
18%$8$53
20%This Page$9$54
25%$11$56

Split Between People (20% Tip)

PeopleTotal Per PersonTip Per Person
2 people$27$5
3 people$18$3
4 people$14$2
5 people$11$2
6 people$9$2

Quick Mental Math for 20% Tip

Find 10% and double it: $5 × 2 = $9
10% of $45 = $5. Double it to get the 20% tip amount.

Other Tip Percentages on $45

15% tip on $4518% tip on $4525% tip on $45

20% Tip on Other Amounts

20% tip on $3220% tip on $3520% tip on $3820% tip on $4020% tip on $4220% tip on $4820% tip on $5020% tip on $5520% tip on $6020% tip on $65
Use the Full Tip & Tax Calculator → Read the Tipping Guide →

Frequently Asked Questions

Is 20% a good tip?

20% is the current standard for good service in most US restaurants. It's easy to calculate and well-regarded. For a $45 bill, a 20% tip is $9.

How do I calculate a 20% tip quickly?

Find 10% by moving the decimal left ($45 → $5), then double it: $5 × 2 = $9.