Whether you're dining solo or splitting with a table of eight, calculating the right tip shouldn't require mental gymnastics. ToolKnit's Tip Calculator handles the math instantly.
How It Works
Three inputs, instant results:
- Bill Amount — Enter the total before tip
- Tip Percentage — Quick buttons for 10%, 15%, 18%, 20%, 25%, or type a custom value
- Split Between — Number of people sharing the bill (1–20+)
The calculator instantly shows: tip amount, total with tip, and per-person share. No button to press —results update as you type.
Tipping Etiquette: A Quick Guide
Tipping norms vary by country and situation. Here's a US-centric reference:
- Sit-down restaurants — 15–20% is standard. 18% is a safe middle ground for good service.
- Takeout & counter service — 10–15% is typical, though not always expected.
- Bars — $1–2 per drink, or 15–20% of the tab.
- Delivery — 15–20%, with a $3–5 minimum for small orders.
- Exceptional service — 25%+ shows genuine appreciation.
Splitting the Bill Fairly
When splitting evenly, each person pays the same total-with-tip amount. This is the simplest approach and what most groups default to.
If one person ordered significantly more (or less), some groups prefer to tip on individual subtotals. In that case, calculate each person's portion separately, then add the tip to each.
The per-person amount displayed by the calculator assumes an even split —the most common scenario.
Mental Math Shortcuts
Even without a calculator, these tricks help:
- 10% tip — Move the decimal point one place left. ($85.00 → $8.50)
- 15% tip — Calculate 10%, then add half of that. ($8.50 + $4.25 = $12.75)
- 20% tip — Calculate 10% and double it. ($8.50 × 2 = $17.00)
Or just use the calculator — it's faster and eliminates rounding errors.
When You're Traveling
Tipping customs differ wildly around the world:
- Japan — Tipping is generally not expected and can even be considered rude.
- Europe — Service charge is often included. Rounding up is appreciated but not required.
- Australia — Tipping is not customary, though 10% for exceptional service is a nice gesture.
- US & Canada — Tipping is expected and a significant part of service workers' income.
Try it now: Open Tip Calculator — free, instant, no sign-up required.