Shopping Calculator

Complete shopping toolkit: discount calculator with stacking, tip calculator with bill splitting, price per unit comparison, and markup/margin calculator for sellers.

4.8

Calculation Parameters

Enter data for calculation

Calculator mode

Original price100 $

1 $5000 $

Sale discount20%

0%90%

Fixed $ off0 $

0 $500 $

Additional %0%

0%50%

Coupon code %0%

0%30%

Member discount0%

0%20%

Quantity1

1 50

Sales tax0%

0%15%

Bill amount75 $

5 $1000 $

Tip percentage18%

0%35%

Custom tip amount0 $

0 $200 $

Split between1 people

1 people20 people

Tax on bill0%

0%15%

Round up total

Option 1 name

Option 1 price

Option 1 quantity

Unit

Option 2 name

Option 2 price

Option 2 quantity

Unit

Option 3 name

Option 3 price

Option 3 quantity

Unit

Sale price75 $

1 $5000 $

Cost price50 $

1 $5000 $

Selling price75 $

1 $10000 $

Target margin0%

0%80%

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Frequently Asked Questions

Answers to common questions about this calculator

Stacked discounts apply sequentially. 20% off then 10% off is NOT 30% off - it's 28% off (100 × 0.8 × 0.9 = 72).

In the US: 15% for adequate service, 18-20% for good service, 20-25% for excellent service. Tip on pre-tax amount.

Not always! Calculate price per unit. Also consider: Will you use it all before it expires? Do you have storage space?

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