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Interest Calculator

Calculate simple interest and compound interest. Compare how your money grows with different compounding frequencies.

Financial Calculators
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Understanding the Snowball Effect

Albert Einstein supposedly called compound interest the eighth wonder of the world, and once you look at the math, you'll see why. While simple interest only pays you based on your original deposit, compound interest pays you interest on top of your interest.

Over a long enough period, this creates a massive snowball effect. A small, consistent investment left alone for twenty years can grow into a dramatically large sum of money without you lifting a finger.

Simple Tools for Complex Math

Figuring out exactly how much your savings account or fixed deposit will yield over a decade involves some tricky exponents that nobody wants to calculate by hand on a napkin.

Our calculator does all the heavy lifting instantly. Whether you're trying to figure out if an investment is worth it, or if you're trying to see how much a personal loan is going to cost you in simple interest, the exact numbers are just a click away.

Frequently Asked Questions

It's all about what the engine calculates interest on. Simple interest is only ever calculated on your original starting amount. Compound interest keeps recalculating based on your new, growing total balance. Compound interest grows much faster.