General finance calculators
The building blocks behind every other financial calculation. · 6 free calculators · Updated 6 August 2026
Simple interest, compound interest, the Rule of 72 and inflation are the four ideas that quietly drive every loan, deposit and investment decision. Understanding them makes product pitches much easier to see through: a scheme promising to double your money in six years is claiming roughly 12% a year, and an FD paying 7% while inflation runs at 6% is barely holding its ground.
The net worth calculator is the annual reality check that ties it together — assets minus liabilities, tracked once a year, is a better measure of progress than income.
All general finance calculators
Simple Interest
Quick simple interest on a principal amount.
CalculateCompound Interest
Compound interest with your choice of frequency.
CalculateRule of 72
Roughly how long until your money doubles.
CalculateInflation
See what today's money will be worth — or cost — in future.
CalculateNet Worth
A quick snapshot of what you own vs what you owe.
CalculateIn-Hand Salary (CTC)
Estimate your take-home pay from your CTC.
Calculate