★ COMPARISONS · CARS · RENT VS BUY A CAR
Buying is $99.77 a month cheaper — but $335.23 of that is equity. Renting a car long-term costs $920.00 a month and buying one costs $820.23 a month on a $30,000 car. After the first month’s principal, the net gap is $435.00 a month. This is about cars, not homes. Enter your numbers to compare your two options. Comparison #214 in the comparisons library.
Renting a car long-term and buying a car are two different ways to have a car, with different monthly bills. This calculator prices the two side by side: the rental fee, insurance and fuel against the loan payment, insurance, maintenance and fuel — with the equity-adjusted net cost. Comparison #214. This is about cars (long-term rental or subscription vs owning), not homes — for the buy-or-rent decision on a home, see the rent vs buy calculator.
This page compares renting a car long-term — a rental or subscription with a monthly fee — against owning a car bought with a loan. This is about cars, not homes. It is distinct from the home rent-vs-buy pages, which compare renting vs buying the same property: for the buy-or-rent decision on a home, see rent vs buy calculator. The rent total is the rental fee plus the rental insurance and the rental fuel. The buy total is the monthly loan payment plus the buy insurance, the maintenance, and the buy fuel. The loan is the car price minus the down payment, the monthly rate is the APR divided by 12, and the payment is the standard amortization over the term in months. The first month’s interest is the loan times the monthly rate, and the first month’s principal is the payment minus the interest — principal is equity, not a cost, so the net buy cost is the buy total minus the first month’s principal.
At the defaults — a rental fee of $650 a month with $120 of insurance and $150 of fuel, against a $30,000 car with 20% down, a 7% APR over 60 months, $120 of insurance, $75 of maintenance and $150 of fuel — the loan is $30,000 × 80% = $24,000.00, and the payment is $24,000 × 0.5833% ÷ (1 − 1.005833−60) = $475.23 (exact 475.2288). The first month’s interest is $24,000 × 7% ÷ 12 = $140.00, and the principal is $475.23 − $140.00 = $335.23. The rent total is $650 + $120 + $150 = $920.00, and the buy total is $475.23 + $120 + $75 + $150 = $820.23. Buying is $99.77 a month cheaper, which is $1,197.25 a year from the unrounded monthly gap. After equity the car costs $820.23 − $335.23 = $485.00 a month, a net gap of $435.00 a month.
| Case | Buy /mo | Rent /mo | Gap /mo | Net gap /mo |
|---|---|---|---|---|
| Default ($650 rent, $30,000 car) | $820.23 | $920.00 | $99.77 | $435.00 |
| Rental fee $450 | $820.23 | $720.00 | -$100.23 | $235.00 |
| Rental fee $850 | $820.23 | $1,120.00 | $299.77 | $635.00 |
| Car price $20,000 | $661.82 | $920.00 | $258.18 | $481.67 |
| Car price $45,000 | $1,057.84 | $920.00 | -$137.84 | $365.00 |
| APR 4% | $787.00 | $920.00 | $133.00 | $495.00 |
| APR 10% | $854.93 | $920.00 | $65.07 | $375.00 |
| Term 36 months | $1,086.05 | $920.00 | -$166.05 | $435.00 |
| Term 84 months | $707.22 | $920.00 | $212.78 | $435.00 |
| Down 0% | $939.04 | $920.00 | -$19.04 | $400.00 |
| Down 50% | $642.02 | $920.00 | $277.98 | $487.50 |
| Maintenance $150 | $895.23 | $920.00 | $24.77 | $360.00 |
Setup: rental fee $650, rental insurance $120, rental fuel $150; car price $30,000, down 20%, APR 7%, term 60 months, buy insurance $120, maintenance $75, buy fuel $150.
Line 1 — the loan and the payment. The loan is $30,000 × 80% = $24,000. The monthly rate is 7% ÷ 12 = 0.5833%. The payment is $24,000 × 0.005833 ÷ (1 − 1.005833−60) = $475.23 (exact 475.2288).
Line 2 — the first month’s split. The interest is $24,000 × 7% ÷ 12 = $140.00, and the principal is $475.23 − $140.00 = $335.23.
Line 3 — the two totals. The rent total is $650 + $120 + $150 = $920.00. The buy total is $475.23 + $120 + $75 + $150 = $820.23.
Line 4 — the gap. $920.00 − $820.23 = $99.77 a month, which is $1,197.25 a year from the unrounded monthly gap.
Line 5 — the equity. The car costs $820.23 − $335.23 = $485.00 a month after equity, a net gap of $435.00 a month.
Reverse: the break-even rental fee is $550.23 a month (exact 550.2288); the break-even car price is $36,298.31 (exact 36,298.3078 — forward: loan $29,038.65, payment $575.00, buy total $920.00); the break-even loan payment is $575.00 a month; and the break-even maintenance is $174.77 a month (exact 174.7712).
Rental fee $450: the rent total is $720.00 a month and the buy total is $820.23, so renting wins by $100.23 a month. A $200 cheaper rental fee flips the answer.
Rental fee $850: the rent total is $1,120.00 a month and the buy total is $820.23, so buying wins by $299.77 a month. A $200 dearer rental fee triples the buying advantage.
Car price $20,000: the payment is $316.82, so the buy total is $661.82 a month and buying wins by $258.18 a month. A $10,000 cheaper car adds $158.41 a month to the buying advantage.
Car price $45,000: the payment is $712.84, so the buy total is $1,057.84 a month and renting wins by $137.84 a month. A $15,000 dearer car flips the answer the other way.
APR 4%: the payment is $442.00, so the buy total is $787.00 a month and buying wins by $133.00 a month. Three points off the APR saves $33.23 a month.
APR 10%: the payment is $509.93, so the buy total is $854.93 a month and buying wins by $65.07 a month. Three points on the APR costs $34.70 a month more.
Term 36 months: the payment is $741.05, so the buy total is $1,086.05 a month and renting wins by $166.05 a month. A short term makes the monthly payment heavy, even though the loan is paid off sooner.
Term 84 months: the payment is $362.22, so the buy total is $707.22 a month and buying wins by $212.78 a month. A long term makes the monthly payment light, but you pay interest for longer.
Down 0%: the payment is $594.04, so the buy total is $939.04 a month and renting wins by $19.04 a month. No down payment means borrowing the full $30,000, and the extra payment just tips the balance.
Down 50%: the payment is $297.02, so the buy total is $642.02 a month and buying wins by $277.98 a month. A big down payment cuts the loan to $15,000.00 and the payment nearly in half.
Maintenance $150: the buy total is $895.23 a month and buying wins by only $24.77 a month. Doubling the maintenance costs $75.00 a month more, and nearly erases the buying advantage.
Reverse — the other way round: the break-even rental fee is $550.23 a month; the break-even car price is $36,298.31; the break-even loan payment is $575.00 a month; and the break-even maintenance is $174.77 a month.
The model assumes the numbers you enter: the rental fee, insurance and fuel, and the car’s price, down payment, APR, term, insurance, maintenance and fuel. It assumes the rental fee covers the car itself and nothing else — check what the rental or subscription includes, because some include insurance and maintenance, which would change the rent total. It assumes the loan is a standard amortization, the first month’s principal is equity and counts out of the net cost, and the car holds its value in the principal — in truth a car loses value, so the equity is worth less than the principal paid. It assumes no rental deposit, no mileage fees, no loan fees, and no repairs beyond the maintenance line. It leaves out the down payment itself, which is cash tied up in the car rather than a monthly cost, and it leaves out depreciation, which is the car’s real cost of owning. With a $0 rental fee the rent total is $270.00, the insurance and fuel alone. With a $0 car price the loan is $0 and the buy total is $345.00. With a 100% down payment the car is paid off, the buy total is $345.00, and buying wins by $575.00 a month on the gross gap. Rounding convention: money is rounded to cents, percents to two decimals, the payment and the break-even figures to two decimals with the exact value to four, and all figures are computed from unrounded values, rounded only for display — so the yearly gap of $1,197.25 is the unrounded monthly gap times 12, not the rounded $99.77 times 12.
| Output | Formula | What it means |
|---|---|---|
| Loan amount | car price × (1 − down %) | $24,000.00. |
| Monthly loan payment | loan × rate ÷ (1 − (1 + rate)−term) | $475.23 (exact 475.2288). |
| First-month interest | loan × APR ÷ 12 | $140.00. |
| First-month principal (equity) | payment − interest | $335.23. |
| Buy total | payment + buy insurance + maintenance + buy fuel | $820.23. |
| Rent total | rental fee + rental insurance + rental fuel | $920.00. |
| Gap (rent − buy) | rent total − buy total; positive means buying is cheaper | $99.77. |
| Annual gap | monthly gap × 12 (from unrounded values) | $1,197.25. |
| Buy net cost after equity | buy total − first-month principal | $485.00. |
| Net gap after equity | rent total − net buy | $435.00. |
| Break-even rental fee | buy total − rental insurance − rental fuel | $550.23 (exact 550.2288). |
| Break-even car price | price where the buy total equals the rent total | $36,298.31 (exact 36,298.3078). |
| Forward check at break-even price | loan + payment + buy total at $36,298.31 | Loan $29,038.65, payment $575.00, buy total $920.00. |
| Break-even loan payment | rent total − buy insurance − maintenance − buy fuel | $575.00. |
| Break-even maintenance | rent total − payment − buy insurance − buy fuel | $174.77 (exact 174.7712). |
| Rental fee $0 | same model, $0 rental fee | Rent total $270.00, gap -$550.23. |
| Car price $0 | same model, $0 car price | Buy total $345.00, gap $575.00. |
| Paid-off car (down 100%) | same model, 100% down | Buy total $345.00, gap $575.00. |
| Rental fee $450 | same model, rental fee $450 | Payment $475.23, buy $820.23, rent $720.00, gap -$100.23, net buy $485.00, net gap $235.00. |
| Rental fee $850 | same model, rental fee $850 | Payment $475.23, buy $820.23, rent $1,120.00, gap $299.77, net buy $485.00, net gap $635.00. |
| Car price $20,000 | same model, $20,000 car | Payment $316.82, buy $661.82, rent $920.00, gap $258.18, net buy $438.33, net gap $481.67. |
| Car price $45,000 | same model, $45,000 car | Payment $712.84, buy $1,057.84, rent $920.00, gap -$137.84, net buy $555.00, net gap $365.00. |
| APR 4% | same model, 4% APR | Payment $442.00, buy $787.00, rent $920.00, gap $133.00, net buy $425.00, net gap $495.00. |
| APR 10% | same model, 10% APR | Payment $509.93, buy $854.93, rent $920.00, gap $65.07, net buy $545.00, net gap $375.00. |
| Term 36 months | same model, 36 months | Payment $741.05, buy $1,086.05, rent $920.00, gap -$166.05, net buy $485.00, net gap $435.00. |
| Term 84 months | same model, 84 months | Payment $362.22, buy $707.22, rent $920.00, gap $212.78, net buy $485.00, net gap $435.00. |
| Down 0% | same model, 0% down | Payment $594.04, buy $939.04, rent $920.00, gap -$19.04, net buy $520.00, net gap $400.00. |
| Down 50% | same model, 50% down | Payment $297.02, buy $642.02, rent $920.00, gap $277.98, net buy $432.50, net gap $487.50. |
| Maintenance $150 | same model, $150 maintenance | Payment $475.23, buy $895.23, rent $920.00, gap $24.77, net buy $560.00, net gap $360.00. |
The math is exact for the numbers you enter: the loan payment is the standard amortization, the totals are the sums of the parts, and the gap is the rent total minus the buy total. What the model cannot do is know what your rental includes: check the fee, because some rentals and subscriptions include insurance and maintenance, which would cut the rent total. It assumes the first month’s principal is equity, but a car loses value, so the equity is worth less than the principal paid — the net gap is the kindest reading of buying, not the whole truth. It leaves out depreciation, rental deposits, mileage fees, loan fees, repairs beyond the maintenance line, and the down payment itself. It assumes a fixed APR and a fixed rental fee for the whole comparison. For leasing instead of renting, see lease vs buy a car; for paying cash instead of financing, see cash vs finance a car.
Bright Side Kit. "Rent vs Buy a Car Calculator: Which Costs Less 2026." https://brightoolbox.com/rent-vs-buy-car/ Accessed October 25, 2026.At these defaults, buying: $820.23 a month against $920.00 to rent. Buying is $99.77 a month cheaper, which is $1,197.25 a year. But $335.23 of the first month’s loan payment is principal — equity, not a cost — so the car costs $485.00 a month after equity, a net gap of $435.00 a month. Buying wins either way at these numbers; the gap closes only when the rental fee falls or the car price rises.
That page is about houses; this page is about cars. The home rent vs buy calculator compares renting vs buying the same property. This page compares a long-term car rental or subscription — a monthly fee that covers the car — against owning a car with a loan, insurance, maintenance and fuel. For the buy-or-rent decision on a home, see rent vs buy calculator.
$550.23 a month. At that fee the rental total is $820.23 a month, exactly the buy total. Below that fee renting is cheaper; above it buying is cheaper. At a $450 rental fee renting wins by $100.23 a month, and at an $850 fee buying wins by $299.77 a month. The break-even fee moves with the car price and the APR: a cheaper car or a lower APR brings it down.
$36,298.31. At that price the loan is $29,038.65, the payment is $575.00, and with the other buy costs of $345.00 the buy total is $920.00 — exactly the rent total. A $20,000 car is $258.18 a month cheaper to buy than to rent, and a $45,000 car is $137.84 a month dearer to buy than to rent.
Buying wins by a lot: $345.00 a month against $920.00 to rent. With no loan the car still pays $120 of insurance, $75 of maintenance and $150 of fuel, which is $345.00 a month. Renting then costs $575.00 a month more — the comparison flips, because the loan payment was $475.23 of the $820.23 buy total. The same $345.00 is what a $0 car price gives, because there is nothing to borrow for.
Per month, yes — but not overall. A 36-month term has a $741.05 payment and a $1,086.05 buy total, so renting wins by $166.05 a month. An 84-month term has a $362.22 payment and a $707.22 buy total, so buying wins by $212.78 a month. The longer term spreads the loan thinner, but you pay interest for longer and the car is older by the time it is yours. The net buy after equity is $485.00 a month at both terms, because the first month’s interest is $140.00 either way.