Transparent formulas
Every calculator explains what is calculated and which assumptions affect the result.
Universal financial calculators
See where your money can take you
Simple calculators for savings, investing, loans and financial goals. The formulas stay the same in every country — you choose the currency and assumptions.
No sign-up Calculations stay in your browser Works with any currency
Live example
Compound growth
Starting amount
$10,000
Every month
$500
Estimated after 10 years
7% / year$106,639
Results update instantly as inputs change
Growing toolkit
One place for everyday financial math
We start with universal formulas and add each calculator as a focused, transparent tool.
Available
Investing
Compound interest
Estimate future value with monthly contributions, flexible compounding frequency and contribution timing.
Open calculatorAvailable
Savings
Savings goal
Find the monthly contribution required to reach a target amount by a chosen date.
Open calculatorAvailable
Loans
Loan payment
Calculate fixed or declining payments, total interest and a downloadable amortization schedule.
Open calculatorAvailable
Loans
Early loan repayment
Compare reducing the loan term with reducing the monthly payment.
Open calculatorAvailable
Loans
Mortgage
Estimate principal, interest, property tax, insurance, HOA, PMI and the amortization schedule.
Open calculatorAvailable
Loans
Auto loan
Calculate a car payment with down payment, trade-in equity, taxes, fees and extra payments.
Open calculatorBuilt for clarity
The numbers should be easy to verify
Country independent
No hidden tax or banking rules. Currency is a display choice, not part of the formula.
Private by design
Inputs are processed in the browser and are not sent to a calculation server.