Free tools

Money Calculators for Parents

No sign-up, no email, no ads in the way. Work out an allowance, model compound interest, or put a real number of weeks on your child's savings goal.

Savings by 18 Calculator

What your child will have saved by their eighteenth birthday, and what starting earlier or later would have reached.

What a monthly amount invested in childhood becomes by 65 if it is never touched again.

What each chore is worth, derived from what adults doing the same work earn and how long it takes.

The 2026 kiddie tax on a child's account — and the balance at which each threshold starts to bite.

See what a savings balance grows into at weekly, monthly or yearly interest — and what the rate costs you.

A suggested weekly allowance by age and scope, plus the real annual cost across all your kids.

How many weeks until your child can afford the thing they want, with or without interest.