Automotive tools
Vehicle planning calculators for purchase comparisons and real running costs.
Automotive calculators for fuel economy, ownership cost, lease comparisons, EV charging, and maintenance planning.
Automotive app structure
This first slice ships fuel economy conversion and ownership cost first. The remaining functions stay in the inventory without broken links.
Automotive calculators
Reference tools for vehicle running cost, fuel-economy units, charging time, and maintenance intervals.
Fuel efficiency converter
Convert km/L, MPG US, MPG UK, and L/100km together.
Car maintenance cost calculator
Add insurance, fuel, maintenance, tax, and optional depreciation into monthly and yearly cost.
Lease vs buy comparison
Compare lease cost with buy net cost over the same period.
Engine oil change calculator
Estimate the next oil change from last service mileage and monthly driving.
EV charging time calculator
Estimate EV charging time from battery size, state of charge, charger power, and efficiency.
Long drive break scheduler
Create a rest and driver-swap schedule from departure time, total driving time, driver count, and night driving.
Road trip total cost calculator
Add fuel, tolls, lodging, and meals to estimate road-trip total and per-person cost.
Maintenance schedule calculator
Calculate the next due point for common maintenance items from current mileage.
Fuel cost calculator
Fuel cost calculator
Tire size calculator
Tire size calculator
Vehicle depreciation reference
Vehicle depreciation reference
EV charging cost calculator
EV charging cost calculator
Mileage reimbursement calculator
Mileage reimbursement calculator
Related existing tools
Frequently asked questions
Can I use this for maintenance decisions?
No. Results are references only. Follow the vehicle manual and qualified mechanics for maintenance and safety decisions.
Should depreciation always be included?
Exclude it for cash flow, include it for total cost of ownership. Avoid counting it twice if another purchase calculator already includes it.