Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Costs are user estimates. No safety, route feasibility, health benefit or avoided-car-ownership assumption.
Example Calculation
- Round-trip commute: 20 km
- Commuting days: 220
- Car variable cost: 0.25 currency/km
- Bike variable cost: 0.03 currency/km
- Annual car parking: 400 currency
- Annual bike fixed costs: 100 currency
4400 annual km at the entered rates plus fixed costs gives car cost 1500, bike cost 232 and difference 1268.
Frequently asked questions
How do I use this calculator?
Enter round-trip commute, commuting days, car variable cost, bike variable cost, annual car parking, annual bike fixed costs. The result updates automatically. Use Reset to restore the example values.
What method does it use?
annual costs=distance × days × variable cost+entered fixed cost.. Costs are user estimates. No safety, route feasibility, health benefit or avoided-car-ownership assumption.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.