What these calculators help you answer.
Trip energy costs depend on distance, efficiency, energy price, weather, driving conditions, and vehicle use. These calculators help organize those inputs for a comparable estimate, whether the vehicle uses liquid fuel, electricity, or an engine power specification.
Results are planning estimates. Actual consumption, charging losses, station prices, battery condition, route elevation, traffic, payload, and driving style can materially change what happens on the road.
For a useful comparison, record where an efficiency figure came from and use the same route distance for each scenario. A dashboard average, laboratory rating, winter trip, towing journey, and highway drive may all be valid measurements, but they should not be treated as identical. For EV journeys, distinguish home and public charging prices and include the practical charging window rather than assuming the advertised maximum power is available throughout.
Revisit estimates after a real trip or charging session. Replacing a broad assumption with your own recorded distance, energy use, and receipt price makes later budgets more useful. Keep recurring expenses such as maintenance, insurance, parking, tolls, and depreciation outside an energy-cost result unless you are deliberately building a broader ownership budget.
- How much might fuel for a trip cost at a stated distance, efficiency, and pump price?
- How do MPG, litres per 100 kilometres, and kilometres per litre describe fuel economy?
- What could an EV charging session cost from battery capacity, charge change, and electricity price?
- How long might charging take at a chosen power level, and how do horsepower and kilowatts compare?
Match the calculator to the question.
Use Fuel Cost Calculator for a trip budget and Fuel Economy Converter when the vehicle specification is reported in a different efficiency convention. Convert first, then keep the converted figure and price unit aligned.
Use EV Charging Cost Calculator for the energy-price question and EV Charging Time Calculator for the power-and-duration question. A session can be inexpensive yet slow, or fast yet priced differently, so they answer separate planning questions.
Power HP / kW Converter compares rated output, not energy use or charging speed. Do not infer fuel economy, range, or cost from a horsepower conversion alone.
Fuel Cost
Estimate trip fuel use and cost from route distance, fuel economy, and a price per fuel unit.
Fuel Economy
Convert efficiency figures among MPG, L/100 km, and km/L without changing the underlying consumption relationship.
Ev Charging Cost
Estimate energy needed and charging cost from battery capacity, state-of-charge change, electricity price, and loss assumptions.
Ev Charging Time
Estimate charging duration from usable battery capacity, charge range, and charging power.
Power
Convert engine or motor output between horsepower and kilowatts for like-for-like specification comparisons.
Compare like with like.
Match distance, fuel volume, and efficiency units: miles work naturally with MPG, while kilometres pair with L/100 km or km/L. For charging, enter electricity price in the same energy unit used by the tariff.
Currency fields represent denomination and formatting only. They do not retrieve live fuel prices, electricity tariffs, exchange rates, taxes, station fees, or time-of-use pricing; enter those figures yourself and label the assumptions.
Questions about this category.
Why does my real fuel cost differ?
Traffic, speed, weather, route, load, and pump price can all differ from the inputs used in the estimate.
Does charging time include tapering?
It is an estimate based on the stated power. Vehicles commonly slow charging near a high state of charge.
Are charging losses included?
Include an appropriate loss assumption when estimating wall energy; the battery’s stored energy alone can understate it.
Does kW equal kWh?
No. kW measures power; kWh measures energy over time.