Mileage overage calculator
Project overage miles and fees before maturity—confirm the per-mile rate in your contract.
Educational estimate only. Real quotes depend on taxes, fees, acquisition/disposition charges, rebates, and how your state treats leases. Use your contract and broker numbers as the source of truth. Reading lease payments and the lease glossary explain the fields behind these calculators.
- Total mileage allowance
- 30,000 mi
- Overage miles
- 8,000 mi
- Projected overage cost
- $2,000.00
Confirm the per-mile rate in your contract—penalties often run $0.15–$0.30 per mile.
Worked example
36-month lease at 10k miles/year — you actually drive 14k/year
- Contract allowance
- 30,000 miles
- Actual mileage
- 42,000 miles
- Overage
- 12,000 miles
- Per-mile rate
- $0.25/mile
- Total overage charge
- $3,000 at lease end
- Prepay rate (typical)
- $0.18/mile
- Prepay cost
- $2,160 at signing
Prepay only if you're confident you'll exceed allowance. No refund for unused prepaid miles.
Mileage overage FAQ
Common questions about this calculator. For broader leasing topics, see the full FAQ.
$0.15-$0.30 per mile is standard. Luxury brands and high-residual vehicles can run $0.25-$0.40. Check the contract — overage rate is listed alongside the annual allowance.
Prepaying is usually $0.05-$0.10 cheaper per mile than paying at lease end. Worth it if you're confident you'll exceed allowance. If you're unsure, don't prepay — you don't get a refund for unused miles.
Consider buying out the lease (no overage applies on a purchase) or replacing it early with a higher-mileage lease. Running ~10k+ miles over at $0.25/mile is $2,500+ in overage you can sometimes avoid.