Math Finally
Makes Sense.
We show every step, every formula, and let you change the numbers yourself. No black boxes. No boring textbooks.
Built different. For people who learn different.
See It
Every chart, every visual, every bar rendered from your actual numbers. Not stock photos of money.
Change It
Every input is a slider or field. Change your wage, your rate, your years — and watch the math update instantly.
Understand It
Every formula shown in plain English. Not just the answer — the path to get there. ShowMath, always.
Why ShowMath?
Most calculators just give you an answer. We show you the math behind it — because understanding how you got there is more valuable than the number itself. Every tool on this page has a "Show Math" section that walks through every formula, one step at a time.
Student Tools
Start here. Every tool is free, no account needed.
Compound Interest Visualizer
Watch your money grow over time — year by year, dollar by dollar. See the gap between saving and investing.
What Will My First Paycheck Be?
Enter your hourly wage and hours — see exactly where every dollar goes and why your check is smaller than expected.
How Credit Scores Actually Work
See the 5 FICO factors, simulate your score with sliders, and explore what-if scenarios: what if I miss a payment? Max out my card?
What Will Your Student Loan Really Cost?
You borrow $30,000. You'll pay back $47,000. See every dollar of interest, every month of payments, and what an extra $50/mo does.
What Does Your Hourly Wage Actually Buy?
At $15/hr after taxes, those $200 Jordans cost 18 hours of work. See your real take-home and what your time is worth.
Built for 13-21 year olds learning about money, math, and how the world actually works. No jargon. No condescension. Just the real math, explained clearly.