Vehicles

Log accidents with severity, other party, police report and claim numbers.

Track each car battery: brand, group size, CCA, warranty and install date.

Record brake pad/rotor/fluid service with odometer and cost.

Calculate concentrate + water litres for a target antifreeze percentage.

Track at-home repairs: job, hours, parts cost and odometer.

Track license, ID and travel-document expiry per driver in your household.

Estimate the cost to charge an EV between two states of charge.

Estimate real-world EV range as a function of outside temperature and cabin heating.

Track fill-ups with odometer, liters and cost.

Find road speed from engine RPM, gearing, final drive and tire size.

Convert between miles-per-gallon (US & UK) and litres per 100 km.

Look up the meaning of an OBD-II diagnostic trouble code (P, B, C or U).

Log oil changes with odometer, oil type and next-due mileage.

Track citations: violation, fine, due date and paid status.

See how a tire-diameter change skews your indicated vs actual speed.

Track corner-by-corner tire pressures and rotations over time.

Parse 225/45R17 style tire codes — sidewall, overall diameter and speedo error vs an OEM size.

Log toll charges by date and location for expense tracking.

Check trailer weight against vehicle rated capacity; estimate tongue weight and safety margin.

Project a vehicle's value year by year using a declining-balance rate.

Compare monthly cost and long-term net of leasing vs financing a vehicle.

Track mods: category, part number, install date and cost.

Track registration, insurance and inspection expiries.

Decode a 17-character VIN: country, manufacturer, model year, plant and check-digit.