Energy, Fuel & Travel

The effect of an air conditioner on the monthly bill, an electric car's cost per 100 km, the total fuel and toll cost of a trip: energy and transport expenses are often overlooked in budgets because they speak in different units such as kilowatt-hours, litres and horsepower. This page both converts the units and shows the cost directly in lira.

Which tool for which question?

• Energy Unit Converter: Joules, Calories, kWh, BTU: Convert energy between joules, kilojoules, megajoules, calories, kilocalories, watt-hours, kilowatt-hours and BTU; compare food calories with electricity use.
• Power Unit Converter: kW, Horsepower (PS, hp), BTU/h: Convert power between watts, kilowatts, megawatts, metric horsepower (PS), mechanical horsepower (hp), BTU per hour and kcal per hour.
• Speed Converter: km/h, mph, m/s and Knots: Convert speeds between kilometres per hour, miles per hour, metres per second, knots and feet per second, and see the running pace in minutes per km.
• Fuel Economy Converter: L/100 km, km/L, mpg: Convert fuel economy between litres per 100 km, kilometres per litre, US mpg and UK (imperial) mpg.
• Electricity Consumption and Cost Calculator: From a device's wattage and hours of use, calculate its daily, monthly and yearly electricity consumption (kWh) and cost.
• EV Charging Cost Calculator: From battery size, charge levels, charging efficiency and the kWh price, work out the charging cost, grid energy, cost per 100 km, range added and charging time.
• Fuel Cost and Trip Expense Calculator: From distance, average consumption and fuel price, work out the fuel needed, the fuel cost, the total trip cost with tolls and the share per person.

How the calculation works

• Electricity cost = power (kW) × hours of use × unit price (TL/kWh); if the appliance is rated in W, divide by 1,000.
• Charging cost = energy drawn from the grid × price per kWh; because of charging losses the energy drawn is larger than what enters the car.
• Trip fuel = distance × consumption (L/100 km) ÷ 100; total expense is fuel plus bridge, motorway and parking costs, divided by the number of people if shared.
• Conversion between energy and power units: kilowatt-hour, joule, calorie and BTU express energy; watt, horsepower and BTU/hour express power.

Things to watch

• The unit price is the value you enter; tariffs (tiers, day-night) change the price.
• An appliance's label power does not always give actual use; thermostat-controlled devices do not run continuously.
• Real fuel consumption varies with speed, load and traffic.