Car loan amortization calculator
A financed car is usually worth less than the loan for a while, and four choices at signing decide how long.
The calculator
On these assumptions you'd owe more than the car is worth until about month 42: between month 30 and 60, depending on how fast it loses value. An assumption, not a forecast.
Monthly payment
$772
Over 72 months at 6.35% on $46,148 financed.
In year 1, $2,743 of your $9,269 goes to interest. By year 6 it's $311.
- Year 1$2,743
- Year 2$2,316
- Year 3$1,861
- Year 4$1,377
- Year 5$861
- Year 6$311
- Interest, the figure at right
- Principal
$9,269 a year. $9,469 in interest over the loan.
Complimentary, 15 minutes. Your numbers come with the booking.
Representation covers purchases and leases from California dealers.
When the car may be worth what you owe
Somewhere between month 30 and month 60, depending on how the car holds its value. Sell before then and you cover the difference in cash.
- What you owe
- What the car may be worth
- Middle case, meets at month 42
- Months 30 to 60
- Value meets balance
- Month 30 to 60
- Middle case meets it
- Month 42
The widest gap, after your first payment: about $8,328.
Different vehicles retain value differently. This range illustrates possible outcomes; it is not a valuation of a specific vehicle.
| Month | Balance | Worth, slower to faster | Equity, central |
|---|---|---|---|
| 12 | $39,621 | $28,350 to $34,020 | −$7,491 |
| 24 | $32,667 | $21,263 to $30,618 | −$5,357 |
| 36 | $25,259 | $15,947 to $27,556 | −$2,045 |
| 48 | $17,367 | $11,960 to $24,801 | $2,365 |
| 60 | $8,958 | $8,970 to $22,321 | $7,814 |
| 72 | $0 | $6,728 to $20,088 | $14,256 |
Four things, and all four are settled at signing. A longer term pushes it later, because principal comes back more slowly. A smaller deposit pushes it later, because the loan starts closer to the price. Negative equity rolled in from a previous vehicle pushes it later, because it is borrowed against a car that is already gone. A higher rate pushes it later, because more of each payment is interest. Nothing you do after signing moves it except paying more than you owe.
The fifth thing is not yours to set at all, and it is why the chart shows a range rather than a line: how fast this particular vehicle loses value. That is what separates month 30 from month 60 above, and nobody can tell you in advance which edge you are on.
Your numbers
What the vehicle itself costs, before tax and fees.
6.35%, the average new-vehicle loan rate (Experian, Q2 2026). Your lender sets yours.
Amount financed: $46,147.76 (out the door, less cash down)
Following the vehicle price at 90% until you enter a figure. A car does not trade for what it retails.
A vehicle that holds its value. The upper edge of the range.
The middle scenario. Every other figure on this page follows it.
A vehicle that loses value quickly. The lower edge of the range.
Start over with the example numbers
Your entries stay in this browser tab until you close it or start over.
Next calculator: Lease or buy?
Every figure
- Amount financed
- $46,148
- Total interest over the loan
- $9,469
- Total of payments
- $55,616
- Payment at 8.35%
- $817, $45 a month more
- Payment at 10.35%
- $863, $91 a month more
Payment schedule
| Year | Paid | Interest | Principal | Balance at year end |
|---|---|---|---|---|
| 1 | $9,269 | $2,743 | $6,527 | $39,621 |
| 2 | $9,269 | $2,316 | $6,954 | $32,667 |
| 3 | $9,269 | $1,861 | $7,408 | $25,259 |
| 4 | $9,269 | $1,377 | $7,893 | $17,367 |
| 5 | $9,269 | $861 | $8,409 | $8,958 |
| 6 | $9,269 | $311 | $8,958 | $0 |
| Month | Payment | Interest | Principal | Balance |
|---|---|---|---|---|
| 1 | $772.45 | $244.20 | $528.25 | $45,619.51 |
| 2 | $772.45 | $241.40 | $531.05 | $45,088.46 |
| 3 | $772.45 | $238.59 | $533.86 | $44,554.60 |
| 4 | $772.45 | $235.77 | $536.68 | $44,017.92 |
| 5 | $772.45 | $232.93 | $539.52 | $43,478.40 |
| 6 | $772.45 | $230.07 | $542.38 | $42,936.02 |
| 7 | $772.45 | $227.20 | $545.25 | $42,390.77 |
| 8 | $772.45 | $224.32 | $548.13 | $41,842.64 |
| 9 | $772.45 | $221.42 | $551.03 | $41,291.61 |
| 10 | $772.45 | $218.50 | $553.95 | $40,737.66 |
| 11 | $772.45 | $215.57 | $556.88 | $40,180.78 |
| 12 | $772.45 | $212.62 | $559.83 | $39,620.95 |
| 13 | $772.45 | $209.66 | $562.79 | $39,058.16 |
| 14 | $772.45 | $206.68 | $565.77 | $38,492.39 |
| 15 | $772.45 | $203.69 | $568.76 | $37,923.63 |
| 16 | $772.45 | $200.68 | $571.77 | $37,351.86 |
| 17 | $772.45 | $197.65 | $574.80 | $36,777.06 |
| 18 | $772.45 | $194.61 | $577.84 | $36,199.22 |
| 19 | $772.45 | $191.55 | $580.90 | $35,618.32 |
| 20 | $772.45 | $188.48 | $583.97 | $35,034.35 |
| 21 | $772.45 | $185.39 | $587.06 | $34,447.29 |
| 22 | $772.45 | $182.28 | $590.17 | $33,857.12 |
| 23 | $772.45 | $179.16 | $593.29 | $33,263.83 |
| 24 | $772.45 | $176.02 | $596.43 | $32,667.40 |
| 25 | $772.45 | $172.86 | $599.59 | $32,067.81 |
| 26 | $772.45 | $169.69 | $602.76 | $31,465.05 |
| 27 | $772.45 | $166.50 | $605.95 | $30,859.10 |
| 28 | $772.45 | $163.30 | $609.15 | $30,249.95 |
| 29 | $772.45 | $160.07 | $612.38 | $29,637.57 |
| 30 | $772.45 | $156.83 | $615.62 | $29,021.95 |
| 31 | $772.45 | $153.57 | $618.88 | $28,403.07 |
| 32 | $772.45 | $150.30 | $622.15 | $27,780.92 |
| 33 | $772.45 | $147.01 | $625.44 | $27,155.48 |
| 34 | $772.45 | $143.70 | $628.75 | $26,526.73 |
| 35 | $772.45 | $140.37 | $632.08 | $25,894.65 |
| 36 | $772.45 | $137.03 | $635.42 | $25,259.23 |
| 37 | $772.45 | $133.66 | $638.79 | $24,620.44 |
| 38 | $772.45 | $130.28 | $642.17 | $23,978.27 |
| 39 | $772.45 | $126.89 | $645.56 | $23,332.71 |
| 40 | $772.45 | $123.47 | $648.98 | $22,683.73 |
| 41 | $772.45 | $120.03 | $652.42 | $22,031.31 |
| 42 | $772.45 | $116.58 | $655.87 | $21,375.44 |
| 43 | $772.45 | $113.11 | $659.34 | $20,716.10 |
| 44 | $772.45 | $109.62 | $662.83 | $20,053.27 |
| 45 | $772.45 | $106.12 | $666.33 | $19,386.94 |
| 46 | $772.45 | $102.59 | $669.86 | $18,717.08 |
| 47 | $772.45 | $99.04 | $673.41 | $18,043.67 |
| 48 | $772.45 | $95.48 | $676.97 | $17,366.70 |
| 49 | $772.45 | $91.90 | $680.55 | $16,686.15 |
| 50 | $772.45 | $88.30 | $684.15 | $16,002.00 |
| 51 | $772.45 | $84.68 | $687.77 | $15,314.23 |
| 52 | $772.45 | $81.04 | $691.41 | $14,622.82 |
| 53 | $772.45 | $77.38 | $695.07 | $13,927.75 |
| 54 | $772.45 | $73.70 | $698.75 | $13,229.00 |
| 55 | $772.45 | $70.00 | $702.45 | $12,526.55 |
| 56 | $772.45 | $66.29 | $706.16 | $11,820.39 |
| 57 | $772.45 | $62.55 | $709.90 | $11,110.49 |
| 58 | $772.45 | $58.79 | $713.66 | $10,396.83 |
| 59 | $772.45 | $55.02 | $717.43 | $9,679.40 |
| 60 | $772.45 | $51.22 | $721.23 | $8,958.17 |
| 61 | $772.45 | $47.40 | $725.05 | $8,233.12 |
| 62 | $772.45 | $43.57 | $728.88 | $7,504.24 |
| 63 | $772.45 | $39.71 | $732.74 | $6,771.50 |
| 64 | $772.45 | $35.83 | $736.62 | $6,034.88 |
| 65 | $772.45 | $31.93 | $740.52 | $5,294.36 |
| 66 | $772.45 | $28.02 | $744.43 | $4,549.93 |
| 67 | $772.45 | $24.08 | $748.37 | $3,801.56 |
| 68 | $772.45 | $20.12 | $752.33 | $3,049.23 |
| 69 | $772.45 | $16.14 | $756.31 | $2,292.92 |
| 70 | $772.45 | $12.13 | $760.32 | $1,532.60 |
| 71 | $772.45 | $8.11 | $764.34 | $768.26 |
| 72 | $772.33 | $4.07 | $768.26 | $0.00 |
How this is calculated
The schedule amortizes the loan month by month. Interest is computed on the balance and rounded to the cent, principal is what is left of the payment, and the final installment absorbs the residue so the balance ends at zero rather than at a few cents.
The value range starts below the vehicle price and declines annually. It starts below because taxes, fees and rolled-in debt are not value, and a car does not trade for what it retails. It is a range rather than a line because a single declining line is a prediction and nobody can make that one honestly.
The crossing is the first month a value scenario meets the balance. A scenario that was never underwater did not break even, and no marker is drawn for it. Three scenarios give up to three crossings, so the page reports the earliest and the latest rather than pretending to one.
The gap before the crossing is the argument. It is the window in which selling or trading means writing a check, and how wide it is depends on how fast the vehicle loses value.
A worked example
A $42,000 new vehicle, financed out the door
- Amount financed
- $46,147.76
- Cash down
- $0
- Rate and term
- 6.35% over 72 months
- Monthly payment
- $772
- Value at delivery
- $37,800
- Annual decline, slower to faster
- 10%, 15%, 25%
- Value meets balance
- Month 30 to 60
The middle scenario crosses at month 42. A vehicle that holds its value gets there at 30, one that loses it quickly at 60. Selling before the crossing means covering the difference in cash, and which of those three a given vehicle follows is the thing nobody can tell you in advance.
What this assumes
- The vehicle’s value at delivery and its three decline rates are yours to set. All four are illustrative until you do.
- The outlook runs ten years, which is four years past a 72-month loan. That stretch is the furthest from anything anyone can evidence, which is why it is drawn as a range rather than a line.
- The range is not an appraisal, and neither is any line inside it. Different vehicles retain value differently.
- The value curves compound annually and are sampled monthly, so the crossing resolves to the month rather than the day.
- Rate, term and cash down move the balance. They do not move the value range.
Where these figures come from
The schedule is standard amortization of the figures you enter, and the value range is an assumption you set rather than a published estimate. The 6.35% starting rate is Experian's Q2 2026 average rate on new-vehicle loans.
Reviewed by CarOracle, a California-licensed auto dealer with an auto broker’s endorsement, license #43082.
Every figure on this page is an estimate, not a quote. A lender, a dealer and the DMV each set their own, and only a signed contract settles what you pay.
Run your own numbers with us
Bring the vehicle you are considering and we will tell you what the market is doing on it in California this month, and what the structure should look like.
Complimentary, 15 minutes. Your numbers come with the booking.