Discount Calculator: Find Your Sale Price and Total Savings
A discount calculator helps you find how much money you save on a product and how much you need to pay after a discount. Enter the original price and the discount percentage to calculate the savings and reduced price.
Our free Discount Calculator also supports an additional discount and optional sales tax or GST. This makes it useful for shopping, comparing offers, budgeting, and checking bills.
How to Use the Discount Calculator
- Enter the original price of the product.
- Select INR (₹) or USD ($) as your display currency.
- Enter the main discount percentage.
- Enter an additional discount if applicable.
- Enter the sales tax or GST percentage if applicable.
- Check your total savings, effective discount, and final payable price.
Leave the additional discount and tax fields at zero if they do not apply. The currency selector changes how amounts are displayed; it does not perform exchange-rate conversion.
Discount Calculator Formula
For a single percentage discount, use these formulas:
Discount Amount = Original Price × Discount Percentage ÷ 100
Price After Discount = Original Price − Discount Amount
When two discounts are offered, the second discount is calculated on the price remaining after the first discount.
Price After Both Discounts = Original Price × (1 − First Discount % ÷ 100) × (1 − Additional Discount % ÷ 100)
Total Savings = Original Price − Price After Both Discounts
Effective Discount % = Total Savings ÷ Original Price × 100
If sales tax applies after the discounts, use these formulas:
Tax Amount = Discounted Price × Tax Percentage ÷ 100
Final Price = Discounted Price + Tax Amount
For an original price of zero, the calculator displays an effective discount of zero to avoid division by zero.
Example 1: Calculate a 25% Discount
Suppose the original price of a product is ₹2,000 and the store offers a 25% discount.
- Original Price: ₹2,000
- Discount Percentage: 25%
- Discount Amount: ₹2,000 × 25 ÷ 100 = ₹500
- Final Price: ₹2,000 − ₹500 = ₹1,500
Result: You save ₹500 and pay ₹1,500 before any applicable tax.
Example 2: Two Discounts with Sales Tax
Suppose a product costs ₹2,000. The store offers a 20% discount followed by an additional 10% discount. An 18% tax is then applied to the reduced price.
- First Discount: 20% of ₹2,000 = ₹400.
- Price After First Discount: ₹1,600.
- Additional Discount: 10% of ₹1,600 = ₹160.
- Price Before Tax: ₹1,440.
- Total Savings: ₹400 + ₹160 = ₹560.
- Effective Discount: ₹560 ÷ ₹2,000 × 100 = 28%.
- Sales Tax: 18% of ₹1,440 = ₹259.20.
- Final Price: ₹1,440 + ₹259.20 = ₹1,699.20.
Final Result: Total discount savings are ₹560, the effective discount is 28%, and the final price including tax is ₹1,699.20.
Important: A 20% discount followed by a 10% discount is not the same as a 30% discount. The combined effective discount is 28%, because the second reduction applies to the already-discounted price.
Benefits of Using This Discount Calculator
- Instant Results: Calculate the reduced price without manual arithmetic.
- Multiple Discounts: Calculate two successive percentage discounts correctly.
- Tax Calculation: Include optional sales tax on the price after discounts.
- Clear Savings: See how much you save before tax.
- Mobile Friendly: Use the calculator on a smartphone, tablet, or computer.
- Currency Display: Display amounts in Indian rupees or US dollars.
When Should You Use a Discount Calculator?
You can use this calculator during festival sales, clearance sales, online shopping, promotional campaigns, and everyday purchases.
It also helps when comparing two offers. For example, a single 30% discount provides greater savings than a 20% discount followed by an additional 10% discount on the reduced price.
For more useful calculation tools, visit the CalculatorNetwork Tools Directory.
Frequently Asked Questions
How do I calculate 20% off a price?
Multiply the original price by 0.20 to calculate the discount amount, then subtract it from the original price. For example, 20% off ₹1,000 means saving ₹200 and paying ₹800 before tax.
How do I calculate two discounts?
Apply the first discount to the original price. Then apply the second discount to the remaining price. Do not simply add both discount percentages together.
Is 20% plus 10% discount equal to 30%?
No. If the discounts are applied successively, the effective discount is 28%. The second discount is calculated on the amount remaining after the first discount.
Does the calculator include GST or sales tax?
Yes. You can enter an optional percentage tax. The calculator adds that tax after both discounts. Actual tax rules and eligible discount amounts may vary.
Does total savings include tax?
No. Total savings represents the amount deducted from the original price before tax. The calculator displays tax separately as part of the final price.
Can I use Indian rupees and US dollars?
Yes. The calculator supports INR and USD display formats. Selecting a currency does not convert an amount from one currency into another.
What happens with a 100% discount?
A 100% discount reduces the calculated product price to zero. Under this calculator's assumptions, tax on the resulting zero price is also zero. Additional charges or special tax rules are not included.
Why might the checkout price differ from the result?
The final checkout amount may include shipping, handling fees, coupon restrictions, tax-inclusive pricing, or other adjustments not represented by this calculator.
Tips for Accurate Discount Calculations
- Use the actual original selling price before the discount.
- Enter discount percentages between 0 and 100.
- Apply additional discounts in the correct order.
- Enter tax only when it applies to the discounted amount.
- Check whether your retailer includes tax in advertised prices.
- Compare the calculated total against the final invoice.
Calculated monetary amounts are displayed to two decimal places. Actual invoice rounding practices may differ.
Conclusion
The Discount Calculator is a convenient way to estimate percentage discounts, successive savings, sales tax, and final payable prices. By showing the calculation steps clearly, it helps shoppers understand offers and compare prices more confidently.
For official billing, always confirm the final amount, taxes, and discount conditions with the seller.