TetraKits
Loan Calculator
Estimate monthly payments, total interest, and see how your loan balance decreases over time.
- 40+ Currencies
- Free to Use
- Instant Results
| Year | Principal paid | Interest paid | Remaining balance |
|---|
Why Use This Calculator?
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Free Forever
Run unlimited loan estimates with no subscriptions or hidden fees.
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Multi-Currency
View payments in 40+ currencies with the same floating selector.
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Live Updates
See monthly payment and total cost update as you adjust inputs.
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Privacy Friendly
All calculations run in your browser. Your loan details stay private.
Frequently Asked Questions
How is the monthly payment calculated?
The calculator uses the standard amortization formula: your loan amount, annual interest rate, and term in years determine a fixed monthly payment that covers both principal and interest.
What types of loans does this work for?
This calculator works for fixed-rate loans such as mortgages, auto loans, and personal loans where the interest rate and payment stay the same each month.
Can I change the currency?
Yes. Tap the currency button to choose from over 40 currencies. Your selection is remembered and shared across TetraKits calculators.
Is this loan calculator free?
Yes. TetraKits Loan Calculator is completely free with no signup, subscriptions, or usage limits.
Understand Your Loan Before You Borrow
Knowing your monthly payment and total interest cost helps you compare offers, plan your budget, and avoid surprises. This loan calculator shows exactly how much of each payment goes toward principal versus interest, plus a year-by-year amortization schedule.
Adjust the loan amount, rate, and term to compare scenarios instantly. Everything runs locally in your browser for complete privacy.
