Tip on $100
A 15% tip on $100 is $15.00, 18% is $18.00 and 20% is $20.00. Use the calculator to change the percentage, or read the full table below.
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How Much Is a Tip On $100?
On a $100 bill, a 15% tip is $15.00, an 18% tip is $18.00 and a 20% tip is $20.00. That makes your total $115.00, $118.00 or $120.00.
One hundred dollars is the reference bill for tipping, because every percentage is the percentage. A 20% tip is $20, a 15% tip is $15, and an 18% tip is $18. If you can tip on $100, you can tip on anything by scaling.
| Tip percentage | Tip | Total |
|---|---|---|
| 10% | $10.00 | $110.00 |
| 12% | $12.00 | $112.00 |
| 15% | $15.00 | $115.00 |
| 18% | $18.00 | $118.00 |
| 20% | $20.00 | $120.00 |
| 22% | $22.00 | $122.00 |
| 25% | $25.00 | $125.00 |
Calculated on $100 before sales tax.
Splitting a $100 Bill
Two people at 20% pay $60 each; four pay $30; five pay $24. A hundred divides evenly by almost everything except three and seven.
| Split between | Each pays (18%) | Each pays (20%) |
|---|---|---|
| 2 people | $59.00 | $60.00 |
| 3 people | $39.33 | $40.00 |
| 4 people | $29.50 | $30.00 |
| 5 people | $23.60 | $24.00 |
| 6 people | $19.67 | $20.00 |
Always add the tip to the full bill first and divide afterwards. Splitting first and letting everyone round their own share up leaves the server short — the main calculator handles this correctly.
Working Out $100 in Your Head
Move the decimal point one place left to get 10% of $100, which is $10.00. Everything else builds from that number: double it for 20% ($20.00), add half of it for 15% ($15.00), or take 20% and subtract a tenth for 18% ($18.00).
There is no arithmetic to do. The percentage is the dollar figure — which is exactly why $100 is the number people use to sanity-check every other bill.
The same shortcut works on any bill — the full method is explained here, and the tip chart covers the amounts either side of $100.
What to Leave on $100 by Service
On a hundred dollars every percentage is itself, so the service-quality decision is unusually transparent: you are choosing between $15, $18, $20 and $25.
| Service | Percentage | Tip | Total |
|---|---|---|---|
| Exceptional service | 25% | $25.00 | $125.00 |
| Good service | 20% | $20.00 | $120.00 |
| Standard service | 18% | $18.00 | $118.00 |
| The acceptable floor | 15% | $15.00 | $115.00 |
| Poor service | 10% | $10.00 | $110.00 |
Below 15% reads as a deliberate comment rather than a small tip, so it is worth speaking to the manager as well. The average tip percentage guide covers where these ranges came from.
Rounding the Total Up Instead
$120 is exactly 20% and $110 exactly 10%. No other bill amount makes the arithmetic this obvious.
| Rounding up to | That tip is | Which is |
|---|---|---|
| Round the total to $110 | $10.00 | 10.0% |
| Round the total to $120 | $20.00 | 20.0% |
| Round the total to $130 | $30.00 | 30.0% |
Rounding is the whole convention outside the United States — see tipping around the world.
$100 Plus Sales Tax
Every figure above is calculated on $100 before sales tax, which is the US convention. What the bill actually comes to depends on where you are — these are the totals at the rates you are most likely to meet.
| Sales tax rate | Tax | Bill with tax | 20% tip (pre-tax) | Total |
|---|---|---|---|---|
| No sales tax (OR, MT, NH, DE) | $0.00 | $100.00 | $20.00 | $120.00 |
| 6% | $6.00 | $106.00 | $20.00 | $126.00 |
| 7% | $7.00 | $107.00 | $20.00 | $127.00 |
| 8% | $8.00 | $108.00 | $20.00 | $128.00 |
| 8.875% (New York City) | $8.88 | $108.88 | $20.00 | $128.88 |
| 10.25% (Chicago area) | $10.25 | $110.25 | $20.00 | $130.25 |
Tipping post-tax instead costs $1.60 more here, and is perfectly acceptable — tax and tip explains why card terminals do it that way.
Frequently Asked Questions
How much do you tip on $100?
The standard US tip on $100 is 18 to 20 percent, which is $18.00 to $20.00. That brings your total to between $118.00 and $120.00.
What is a 20 percent tip on $100?
A 20 percent tip on $100 is $20.00, making the total $120.00. To get it quickly, find 10 percent ($10.00) and double it.
What is a 15 percent tip on $100?
A 15 percent tip on $100 is $15.00, for a total of $115.00. Fifteen percent is the low end of normal for US table service.
How much is $100 split between four people with tip?
With a 20 percent tip the total is $120.00, so four people pay $30.00 each. At 18 percent it is $29.50 each.
Other Bill Amounts
The same breakdown for the amounts people look up most often.