Page 3 of the Commute Calculators topic archive. Return to page one for the full topic guide.
For a causes-and-fixes approach, use consistent units and real package coverage, yield, rate or vehicle data, keep full precision through the math, and round only when converting to a usable quantity. The goal is to confirm.
For this “what to check first” angle, use consistent units and real package coverage, yield, rate or vehicle data, keep full precision through the math, and round only when converting to a usable quantity. The goal is.
Add round-trip fuel cost, parking, tolls and any recurring transit fees, then multiply by commute days per month. Keep vehicle maintenance separate if you want both a simple cash cost and a fuller ownership estimate.