Borrowing
Loan calculator
Estimate a fixed monthly payment, total interest, payoff time, and the effect of recurring extra principal.
- Monthly payment
- Amortization schedule
- Extra-payment comparison
Calculator directory
Choose the financial question you want to answer.
Each calculator focuses on one planning task, keeps the assumptions visible, and links directly to the method and guides behind the result.
- No signup
- Values stay in your browser
- Methods documented
- Free to use
Four focused tools
Available calculators
Start with a tool, then use its worked example and related guides to interpret the estimate.
Saving goals
Savings goal calculator
Find the recurring amount needed by a deadline or estimate when a current saving plan may reach its goal.
- Required contribution
- Time to goal
- Weekly to monthly schedules
Fixed-term saving
CD calculator
Estimate maturity value and interest from a deposit, APY, and term, or compare two certificate offers.
- Maturity value
- Offer comparison
- Interest milestones
Compound growth
Compound interest calculator
Project a starting balance and regular deposits, then separate contributed money from estimated interest.
- Flexible deposits
- Frequency controls
- Annual schedule
Keep and compare the result without an account
Each calculator can export the current estimate as a CSV, save one scenario on your browser, and create a shareable result snapshot only when you choose. The compound interest, savings goal, and loan tools also compare scenario A with a later result; the CD calculator compares two offers directly.
Financial inputs and calculated values stay in the browser and are excluded from analytics. Review the formulas and limitations behind every calculator or read the browser storage, sharing, and analytics boundaries.