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Free Online Calculators

92 free tools

Calculators for money, maths, dates and everyday questions: monthly loan instalments, compound interest and SIP growth, percentages and discounts, profit margins and GST, exact age and the days between two dates, BMI, unit conversions and more.

The calculations run in your browser, so the numbers you enter are not sent anywhere. For loans and tax, treat the result as an estimate and confirm the final figure with your bank or a tax adviser.

Try different numbers side by side to compare loan offers, check homework or price a product — there is nothing to install and they work the same on a phone as on a desktop.

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Money & finance 8

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Helpful calculators guides

Frequently asked questions

How is a loan EMI calculated?

From the loan amount, the interest rate and the number of months, using the standard reducing-balance formula banks use. The calculator also shows the total interest you will pay.

What is the difference between simple and compound interest?

Simple interest is paid only on the original amount. Compound interest is also paid on the interest already earned, so it grows faster over time.

How do I calculate a percentage increase?

Subtract the old value from the new one, divide by the old value and multiply by 100. The Percentage Calculator does this and the other common percentage questions.

Is BMI accurate for everyone?

It is a quick screening number. It does not tell muscle from fat, so athletes and older adults should read it alongside other measures.

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