Restaurant Bill Calculator – Easily Calculate Total Dining Cost

What is a Restaurant Bill Calculator?

A restaurant bill calculator helps you quickly determine your total dining cost, including food, drinks, tax, and tips.
It’s especially useful when you’re splitting the bill among friends or budgeting for a meal out.

Main Formula

The main restaurant bill calculation is simple:

$\text{Total Bill}=(\text{Food Cost}+\text{Drink Cost})+\text{Tax Amount}+\text{Tip Amount}$​​​​​​​

Step 1: Calculate Subtotal

The subtotal is the sum of your food and drink costs.

$\text{Subtotal}=\text{Food Cost}+\text{Drink Cost}$

Step 2: Calculate Tax

To find the tax, multiply the subtotal by the sales tax percentage.

$\text{Tax Amount}=\text{Subtotal}\times \frac{\text{Tax ( \%)}}{100}$

Step 3: Calculate Tip

Tip is also based on the subtotal (before tax, in most places).

$\text{Tip Amount}=\text{Subtotal}\times \frac{\text{Tip (\%)}}{100}$

Step 4: Calculate Total Bill

Finally, add everything together:

$\text{Total Bill}=\text{Subtotal}+\text{Tax Amount}+\text{Tip Amount}$

Step 5: Calculate Cost per Person (Optional)

If you’re splitting the bill, divide by the number of people:

$\text{Cost per Person}=\frac{\text{Total Bill}}{\text{Number of People}}$

Example Calculation

Let’s calculate an example step by step

• Food Cost: $80
• Drink Cost: $20
• Sales Tax: 8%
• Tip: 15%
• Number of People: 4

Step 1: Subtotal

$\text{Subtotal}=80+20=100$

Step 2: Tax Amount

$\text{Tax Amount}=100\times \frac{8}{100}=8$

Step 3: Tip Amount

$\text{Tip Amount}=100\times \frac{15}{100}=15$

Step 4: Total Bill

$\text{Total Bill}=100+8+15=123$

Step 5: Cost per Person

$\text{Cost per Person}=\frac{123}{4}=30.75$

Result:

• Total Bill: $123.00
• Each Person Pays: $30.75

Conclusion

A restaurant bill calculator makes it easy to estimate your total meal cost including tax and tip, and split it evenly among guests.
No more confusion over who owes what — just enter your values, and the math takes care of itself.