Tools
A game with real charts, new every day, and seven calculators you run with your own numbers: move a slider, read the number, keep the link. Nothing is stored and nothing is sent anywhere.
A game
Calculators with your numbers
- Compound interest See how monthly savings grow over 20 years. What does $1,000 a month turn into? Open →
- How much does inflation eat? What $100 today will be worth, and why. What will the same $100 buy later? Open →
- CETES vs account vs inflation Where the same money keeps what it buys. Where does my money hold its value? Open →
- What if I only pay the minimum? How long a credit card takes at the minimum, and what it costs. How long does the minimum take? Open →
- How much is my aguinaldo? Mexico’s Christmas bonus by law, and how much of it is taxed. What am I owed before 20 December? Open →
- 50/30/20 budget Your allowance, scholarship or pay in needs, wants and future, with the 50/30/20 rule. How do I split what I get each month? Open →
- What is YOUR inflation? Your spending in eight categories, with INEGI’s official inflation for each one, next to the INPC. Is my inflation the INPC’s? Open →
Educational tool. It assumes constant rates and ignores taxes, fees and any surprise; real returns and real inflation change every year. It is here to show the shape of the idea, not to plan your money with it, and it is not financial advice.