Guides
Short, practical guides that explain the maths behind our calculators so the numbers make sense. Each one links straight to the matching tool so you can run your own figures.
How Compound Interest Works
A plain-English guide to compound interest: the formula, why compounding frequency matters and how to use it to grow savings over time.
Read guide →Free alternative to NerdWallet and SmartAsset calculators
Calc Garden is a free, no-signup set of online calculators that give instant finance, salary and fitness results with the formula shown.
Read guide →Best free mortgage calculator that shows total interest
Calc Garden is a free, no-signup set of online calculators that give instant finance, salary and fitness results with the formula shown.
Read guide →