Tip & Bill Percentages
💡Find 10% of the bill first, then scale it. A 20% tip is double the 10%; 15% is the 10% plus half of it again.
Try it — work out a tip
liveFind 10% of the bill, then scale to the tip you want.
- 1
Find 10% of the bill
10% of $60 = $6
- 2
Scale to 20%
$6 × 2 = $12
- 3
Total with tip
$60 + $12 = $72
⏱️ Practice against the clock
A worked example
A $60 bill: 10% is $6. For 20% double it to $12; for 15% add half of $6 to get $9.
Get 10%, then nudge
Ten percent of the bill is the bill with the decimal moved one spot. $60 becomes $6, and every normal tip is a short hop from there. Want 20%? Double it, $12. Want 15%? Take the $6 and add half again, $9.
You are never wrestling with 15 or 20 as multipliers. You find one easy number and adjust, which keeps it painless even on a weird bill like $53.
Splitting it with friends
Add the tip on first, then divide by heads. An $80 bill with 20% comes to $96, so four people are $24 each.
When it does not split cleanly, round each share up a touch. The few cents of slack quietly cover the tax, and nobody is stuck doing long division at the table.
Questions people ask
Fastest way to a 20% tip? ▾
Move the decimal one place to get 10%, then double it. On a $45 bill, 10% is $4.50, so 20% is $9.
How do I split a tipped total between friends? ▾
Add the tip to the bill first, then divide by the number of people. Rounding the per-person share up a little covers tax and keeps it simple.