About MoneyDeck

What we do

MoneyDeck turns the math behind everyday decisions into simple tools. Whether you are comparing mortgages, planning retirement, tracking macros, converting units or counting words, you get an instant answer and a clear explanation of how it was worked out.

How we build and check tools

• Every tool documents its formula, assumptions and worked examples on the page.
• Worked examples double as automated tests: each is checked against independently computed values before a tool is published.
• Tools that depend on rules (tax brackets, contribution limits, health guidelines) cite official sources and show when they were last reviewed.
• Calculations run in your browser, so what you type stays on your device.

Important note

Our tools give estimates for education and planning. They are not financial, tax, legal or medical advice. For decisions that matter, confirm the numbers with a qualified professional.

Free, supported by ads

MoneyDeck is free to use and supported by advertising. Ads never change a calculation or its result.