Extra Loan Payment Calculator — Interest and Time Saved
See how an extra monthly payment reduces total interest and shortens your auto or personal loan term.
Vehicle & loan details
Loan amount: $30,000.00Longer terms lower the monthly payment but usually increase total interest.
About auto loan estimates
This calculator uses standard fixed-rate amortization. Dealer fees, GAP insurance, and registration costs are not included unless you add them to the vehicle price.
Base payment vs extra $100/mo
You save $993.85 in interest and finish 10 months sooner.
Vehicle & loan details
Loan amount: $30,000.00Longer terms lower the monthly payment but usually increase total interest.
About auto loan estimates
This calculator uses standard fixed-rate amortization. Dealer fees, GAP insurance, and registration costs are not included unless you add them to the vehicle price.
Estimated monthly payment
$596.02
$30,000.00 loan at 7.14% APR over 60 months.
Total interest
$5,761.13
Total cost
$35,761.13
Interest saved with extra $100/mo
$993.85
Total interest
$5,761.13
Total cost
$35,761.13
Interest saved with extra $100/mo
$993.85
Payoff timeline
60 months to payoff
Monthly payment
$596.02
Total interest
$5,761.13
Loan amount
$30,000.00
Total cost
$35,761.13
Base payment vs extra $100/mo
You save $993.85 in interest and finish 10 months sooner.
| # | Month | Payment | Principal | Interest | Balance |
|---|---|---|---|---|---|
| 1 | Jul 2026 | $596.02 | $417.52 | $178.50 | $29,582.48 |
| 2 | Aug 2026 | $596.02 | $420.00 | $176.02 | $29,162.48 |
| 3 | Sep 2026 | $596.02 | $422.50 | $173.52 | $28,739.98 |
| 4 | Oct 2026 | $596.02 | $425.02 | $171.00 | $28,314.96 |
| 5 | Nov 2026 | $596.02 | $427.55 | $168.47 | $27,887.41 |
| 6 | Dec 2026 | $596.02 | $430.09 | $165.93 | $27,457.32 |
| 7 | Jan 2027 | $596.02 | $432.65 | $163.37 | $27,024.67 |
| 8 | Feb 2027 | $596.02 | $435.22 | $160.80 | $26,589.45 |
| 9 | Mar 2027 | $596.02 | $437.81 | $158.21 | $26,151.64 |
| 10 | Apr 2027 | $596.02 | $440.42 | $155.60 | $25,711.22 |
| 11 | May 2027 | $596.02 | $443.04 | $152.98 | $25,268.18 |
| 12 | Jun 2027 | $596.02 | $445.67 | $150.35 | $24,822.51 |
| 13 | Jul 2027 | $596.02 | $448.33 | $147.69 | $24,374.18 |
| 14 | Aug 2027 | $596.02 | $450.99 | $145.03 | $23,923.19 |
| 15 | Sep 2027 | $596.02 | $453.68 | $142.34 | $23,469.51 |
| 16 | Oct 2027 | $596.02 | $456.38 | $139.64 | $23,013.13 |
| 17 | Nov 2027 | $596.02 | $459.09 | $136.93 | $22,554.04 |
| 18 | Dec 2027 | $596.02 | $461.82 | $134.20 | $22,092.22 |
| 19 | Jan 2028 | $596.02 | $464.57 | $131.45 | $21,627.65 |
| 20 | Feb 2028 | $596.02 | $467.34 | $128.68 | $21,160.31 |
| 21 | Mar 2028 | $596.02 | $470.12 | $125.90 | $20,690.19 |
| 22 | Apr 2028 | $596.02 | $472.91 | $123.11 | $20,217.28 |
| 23 | May 2028 | $596.02 | $475.73 | $120.29 | $19,741.55 |
| 24 | Jun 2028 | $596.02 | $478.56 | $117.46 | $19,262.99 |
| 25 | Jul 2028 | $596.02 | $481.41 | $114.61 | $18,781.58 |
| 26 | Aug 2028 | $596.02 | $484.27 | $111.75 | $18,297.31 |
| 27 | Sep 2028 | $596.02 | $487.15 | $108.87 | $17,810.16 |
| 28 | Oct 2028 | $596.02 | $490.05 | $105.97 | $17,320.11 |
| 29 | Nov 2028 | $596.02 | $492.97 | $103.05 | $16,827.14 |
| 30 | Dec 2028 | $596.02 | $495.90 | $100.12 | $16,331.24 |
| 31 | Jan 2029 | $596.02 | $498.85 | $97.17 | $15,832.39 |
| 32 | Feb 2029 | $596.02 | $501.82 | $94.20 | $15,330.57 |
| 33 | Mar 2029 | $596.02 | $504.80 | $91.22 | $14,825.77 |
| 34 | Apr 2029 | $596.02 | $507.81 | $88.21 | $14,317.96 |
| 35 | May 2029 | $596.02 | $510.83 | $85.19 | $13,807.13 |
| 36 | Jun 2029 | $596.02 | $513.87 | $82.15 | $13,293.26 |
| 37 | Jul 2029 | $596.02 | $516.93 | $79.09 | $12,776.33 |
| 38 | Aug 2029 | $596.02 | $520.00 | $76.02 | $12,256.33 |
| 39 | Sep 2029 | $596.02 | $523.09 | $72.93 | $11,733.24 |
| 40 | Oct 2029 | $596.02 | $526.21 | $69.81 | $11,207.03 |
| 41 | Nov 2029 | $596.02 | $529.34 | $66.68 | $10,677.69 |
| 42 | Dec 2029 | $596.02 | $532.49 | $63.53 | $10,145.20 |
| 43 | Jan 2030 | $596.02 | $535.66 | $60.36 | $9,609.54 |
| 44 | Feb 2030 | $596.02 | $538.84 | $57.18 | $9,070.70 |
| 45 | Mar 2030 | $596.02 | $542.05 | $53.97 | $8,528.65 |
| 46 | Apr 2030 | $596.02 | $545.27 | $50.75 | $7,983.38 |
| 47 | May 2030 | $596.02 | $548.52 | $47.50 | $7,434.86 |
| 48 | Jun 2030 | $596.02 | $551.78 | $44.24 | $6,883.08 |
| 49 | Jul 2030 | $596.02 | $555.07 | $40.95 | $6,328.01 |
| 50 | Aug 2030 | $596.02 | $558.37 | $37.65 | $5,769.64 |
| 51 | Sep 2030 | $596.02 | $561.69 | $34.33 | $5,207.95 |
| 52 | Oct 2030 | $596.02 | $565.03 | $30.99 | $4,642.92 |
| 53 | Nov 2030 | $596.02 | $568.39 | $27.63 | $4,074.53 |
| 54 | Dec 2030 | $596.02 | $571.78 | $24.24 | $3,502.75 |
| 55 | Jan 2031 | $596.02 | $575.18 | $20.84 | $2,927.57 |
| 56 | Feb 2031 | $596.02 | $578.60 | $17.42 | $2,348.97 |
| 57 | Mar 2031 | $596.02 | $582.04 | $13.98 | $1,766.93 |
| 58 | Apr 2031 | $596.02 | $585.51 | $10.51 | $1,181.42 |
| 59 | May 2031 | $596.02 | $588.99 | $7.03 | $592.43 |
| 60 | Jun 2031 | $595.95 | $592.43 | $3.52 | $0.00 |
Swipe to see all columns
60 months total · scroll to view all rows
Planning estimates only — not financial or lending advice. Actual loan terms depend on your lender, credit profile, fees, taxes, and insurance. Check your lender's quote before financing a vehicle.
How this is calculated
PaydownBase uses the standard fixed-rate installment loan formula. Your monthly payment stays the same, but each month a portion goes to interest (based on the remaining balance) and the rest reduces principal.
Vehicle price minus down payment and trade-in gives the loan amount. Default APR presets come from the Federal Reserve G.19 consumer credit release for new car loans. Add dealer fees or taxes to the vehicle price if you want them included in the estimate.
Monthly payment (PMT)
M = P · [ r(1+r)ⁿ ] / [ (1+r)ⁿ − 1 ]P = loan amount, r = APR / 12, n = term in months. Extra payments reduce principal faster and lower total interest.
Federal Reserve G.19 · CFPB Truth in Lending · Our methodology →
Related calculators
Common questions
Enter the APR quoted by your lender or credit union. Our 7.14% preset is the Fed G.19 average for new car loans at 60 months (2026-05 preliminary). Your rate may differ based on credit score and loan term.