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Loan calculator
Compare monthly payments, total interest, and estimated savings for two rates on the same loan principal and term.
Compare two fully amortizing loan rates side by side and identify the lower interest cost.
How to read these results
These values are calculated from your current inputs. Check the input units and this calculator’s stated assumptions or included scope alongside the results.
Primary result: Lower total-interest loan
Supporting value: Estimated interest savings
Use the result for your next decision
Compare the primary result with your target or another option, then change only the conditions you want to test and recalculate. Before acting, also check the calculator-specific guidance and applicable conditions.
Keep up to three calculated result snapshots only for this page session and compare them with the current result. Inputs, URLs, and browser storage are not used.
Shares only the calculator name and displayed result summary. Inputs and URLs are not included or stored.
Uses your browser’s print feature without uploading or automatically saving your inputs or results.
A planning estimate using fully amortizing payments and a constant monthly rate. Fees, prepayments, and rate changes are excluded.
Calculate to compare monthly payments and total interest.
The calculator uses equal monthly payments on a fully amortizing loan.
Yes. At 0%, monthly payment is principal divided by the term.
No. Only interest is compared, so evaluate other borrowing costs separately.
This comparison uses one shared term. Calculate each loan separately when terms differ.