Commute Calculator

The calculator uses the formula: Monthly Cost = (Days × Fuel Cost per Round Trip) + (Days × Parking) + (Days × Tolls) + (Monthly Distance × Wear & Tear Rate). Fuel cost per round trip is calculated as (2 × one-way distance ÷ MPG) × fuel price per gallon, then divided among all occupants if carpooling.

Wear and tear covers the ongoing costs of running a vehicle beyond fuel — including tire replacement, oil changes, brake wear, and general depreciation. The IRS recommends roughly $0.08–$0.14 per mile as a standard estimate. You can adjust this rate to match your vehicle's actual maintenance costs.

Yes — carpooling is one of the most effective ways to cut fuel costs. When you enter carpool passengers, the fuel cost is split equally among all occupants. For example, driving with just one passenger cuts your fuel bill in half. Parking and toll costs are not typically split and remain as your expense unless agreed otherwise.

The calculator subtracts your monthly public transport pass cost from your total driving cost to show potential monthly and annual savings. In many urban areas, a monthly transit pass costs significantly less than fuel, parking, tolls, and maintenance combined — especially for shorter commutes in city centres.

If your employer provides free parking, enter 0 for the daily parking cost. However, factor in any street parking, transit connection parking, or incidental costs you do pay. Free parking at work is a significant financial benefit — the calculator reflects this by reducing your overall commute cost.

The estimate is based on your stated MPG and fuel price, which are the two biggest variables. Real-world fuel economy can vary depending on traffic, driving style, and vehicle condition. For a more accurate result, use your actual average MPG from recent fill-ups rather than the manufacturer's estimate.

Simply adjust the 'Working Days Per Month' field to reflect your actual commute frequency. For example, if you work three days a week in the office, enter around 13 days per month. This makes the calculator accurate for hybrid workers or those with flexible schedules.

For electric vehicles, you can repurpose the MPG field as an equivalent efficiency measure and adjust the fuel price to reflect your cost per equivalent gallon of electricity. Many online tools provide MPGe (miles per gallon equivalent) ratings for EVs to use in this calculation.