Everyday Finance Calculators
Quick tools for the maths that comes up in daily life: interest on a loan or deposit, percentages, shopping discounts and currency conversion.
Calculators
- Simple Interest CalculatorInterest and total amount using the simple interest formula.
- Compound Interest CalculatorMaturity amount and interest with your choice of compounding frequency.
- Percentage CalculatorFind a percentage of any number, with the formula and examples.
- Discount CalculatorSale price, savings and final price with optional GST.
- Currency ConverterConvert between INR and major currencies using indicative reference rates.
- Inflation CalculatorFuture cost of an expense and the shrinking purchasing power of money.
- GST CalculatorAdd or remove GST and split it into CGST/SGST or IGST.
Simple vs compound interest
Simple interest grows in a straight line on the original principal. Compound interest also earns interest on past interest, so it pulls ahead over time. Use the two calculators side by side to see the gap.
Percentages everywhere
- Bills: GST, service charge and tips.
- Shopping: single and successive discounts.
- Money: interest rates, salary hikes and returns.
Guides
Frequently asked questions
Are the currency rates live?
No. The currency converter uses static reference rates that are updated manually and makes no internet requests. Check a live source before transacting.
How do successive discounts work?
They apply one after another, not added. 20% then 10% off leaves 0.8 × 0.9 = 0.72 of the price — a 28% effective discount.