Free financial tools, built for real people making real money decisions.
CalcFinance.org is a free collection of financial calculators built for everyday people trying to make sense of mortgages, debt, retirement, taxes, and savings — without needing a finance degree to understand the numbers.
Most people make some of the biggest financial decisions of their lives — buying a home, paying off debt, planning retirement — using rough mental math or scattered advice from forums. We wanted a single place with clear, fast, accurate tools to answer the questions people actually search for.
Whether you're figuring out how much house you can afford on your salary, how long it'll take to pay off a credit card, or what tax bracket you fall into, our goal is the same: give you a straight answer in seconds, with no jargon and no friction.
CalcFinance.org currently offers free calculators covering:
We're continuing to build and refine these tools based on the questions real people are asking.
Every calculation runs entirely in your browser — nothing you type is ever sent to a server, stored, or shared. We use standard, widely accepted financial formulas (the same ones banks and lenders use) to keep results accurate and consistent.
Your numbers never leave your device.
No signup, no waiting, no email required.
The same math lenders and advisors use.
Supported by ads, never by your data.
We're not a bank, a licensed financial advisor, or a tax professional. Our calculators provide estimates based on the information you enter and standard financial formulas — they're meant to help you understand your options, not replace professional advice. For decisions that significantly affect your finances, we always recommend speaking with a qualified advisor, CPA, or mortgage professional.
We'd love to hear from you — whether it's a bug report, a suggestion, or a calculator you wish existed.
contact@calcfinance.org