Calculate electricity consumption and cost.
Enter the power, operating hours per day, number of days and tariff per 1 kWh - get the consumption and cost for each device and in total.
The electricity cost calculator allows you to calculate the consumption and cost of electricity for one or more household appliances at the same time. You can add an unlimited number of devices, each with its own power, operating time and tariff parameters. The calculator automatically sums up the total consumption and cost. The results can be exported to CSV for further analysis.
Let's look at practical examples of calculating the consumption and cost of electricity for various household appliances:
A 2000 W electric kettle works 0.5 hours a day for 30 days
Входные данные:
Power: 2000 W, Hours/day: 0.5 h, Days: 30, Tariff: 5.5 ₽/kWhРасчёт:
Consumption: (2000 W × 0.5 h × 30 days) / 1000 = 30 kWh
Cost: 30 kWh × 5.5 ₽/kWh = 165 ₽Результат:
Consumption: 30 kWh, Cost: 165 ₽
Период:
In 30 days
The electric kettle consumes a lot of energy in a short time, but does not last long
150 W refrigerator runs 24 hours a day for 30 days
Входные данные:
Power: 150 W, Hours/day: 24 h, Days: 30, Tariff: 5.5 ₽/kWhРасчёт:
Consumption: (150 W × 24 h × 30 days) / 1000 = 108 kWh
Cost: 108 kWh × 5.5 ₽/kWh = 594 ₽Результат:
Consumption: 108 kWh, Cost: 594 ₽
Период:
In 30 days
The refrigerator runs constantly, but consumes less energy
A 2000 W washing machine runs 1.5 hours a day for 30 days
Входные данные:
Power: 2000 W, Hours/day: 1.5 h, Days: 30, Tariff: 5.5 ₽/kWhРасчёт:
Consumption: (2000 W × 1.5 h × 30 days) / 1000 = 90 kWh
Cost: 90 kWh × 5.5 ₽/kWh = 495 ₽Результат:
Consumption: 90 kWh, Cost: 495 ₽
Период:
In 30 days
The washing machine uses a lot of energy but doesn't last long
100 W LED TV works 6 hours a day for 30 days
Входные данные:
Power: 100 W, Hours/day: 6 h, Days: 30, Tariff: 5.5 ₽/kWhРасчёт:
Consumption: (100 W × 6 h × 30 days) / 1000 = 18 kWh
Cost: 18 kWh × 5.5 ₽/kWh = 99 ₽Результат:
Consumption: 18 kWh, Cost: 99 ₽
Период:
In 30 days
Modern LED TVs consume significantly less energy
Calculation of total consumption for several devices
Входные данные:
Kettle: 2000 W × 0.5 h × 30 days
Refrigerator: 150 W × 24 h × 30 days
Washing machine: 2000 W × 1.5 h × 30 days
Tariff: 5.5 ₽/kWhРасчёт:
Kettle: 30 kWh × 5.5 ₽ = 165 ₽
Refrigerator: 108 kWh × 5.5 ₽ = 594 ₽
Washing machine: 90 kWh × 5.5 ₽ = 495 ₽
Total: 228 kWh, Cost: 1254 ₽Результат:
Total consumption: 228 kWh, Total cost: 1254 ₽
Период:
In 30 days
The calculator automatically summarizes the consumption and cost of all appliances
1500 Watt air conditioner runs 8 hours a day for 90 days
Входные данные:
Power: 1500 W, Hours/day: 8 h, Days: 90, Tariff: 5.5 ₽/kWhРасчёт:
Consumption: (1500 W × 8 h × 90 days) / 1000 = 1080 kWh
Cost: 1080 kWh × 5.5 ₽/kWh = 5940 ₽Результат:
Consumption: 1080 kWh, Cost: 5940 ₽
Период:
In 90 days (summer season)
Air conditioning is one of the most energy-consuming appliances in the hot season
Consumption (kWh) = Power (W) × Time (h) / 1000 Cost = Consumption × Tariff (per 1 kWh)
Расчёт основан на стандартной формуле: потребление в кВт⋅ч получается делением произведения мощности в ваттах и времени работы в часах на 1000. Стоимость рассчитывается умножением потребления на тариф за 1 кВт⋅ч. Калькулятор автоматически выполняет все расчёты для каждого прибора и суммирует итоговые значения.
Калькулятор стоимости электроэнергии предоставляет множество преимуществ для точного расчёта потребления и затрат:
Автоматический расчёт потребления и стоимости для всех приборов одновременно
Поддержка неограниченного количества устройств с автоматическим суммированием
Сохранение результатов в CSV для дальнейшего анализа и документирования
Использование стандартных формул и актуальных тарифов для максимальной точности
Полезные советы для точного расчёта стоимости электроэнергии:
To calculate the energy consumption of the device, use the formula: Consumption (kWh) = Power (W) × Operating time (h) / 1000. For example, a 2000 W kettle operating 0.5 hours per day: (2000 W × 0.5 h) / 1000 = 1 kWh per day. In the calculator, enter the power of the device, operating hours per day, number of days and tariff - get an automatic calculation of consumption and cost.
To calculate the cost of electricity, multiply the consumption in kWh by the tariff per 1 kWh in your region. Formula: Cost = Consumption (kWh) × Tariff (₽/kWh). For example, with a consumption of 30 kWh and a tariff of 5.5 ₽/kWh: 30 × 5.5 = 165 ₽. The calculator automatically calculates the cost for each device and the total amount.
To calculate monthly electricity consumption, enter the power of the appliance in watts, hours of operation per day and set the number of days to 30. Formula: (Power × Hours/day × 30 days) / 1000 = Monthly consumption in kWh. For example, a 150 W refrigerator running 24 hours: (150 × 24 × 30) / 1000 = 108 kWh per month. The calculator automatically calculates consumption and cost for the selected period.
To calculate the cost of electricity for several devices, add each device to the calculator with its parameters (power, operating hours, days, tariff). The calculator automatically summarizes the consumption of all appliances in kWh and calculates the total cost. For example, a kettle (30 kWh) + refrigerator (108 kWh) + washing machine (90 kWh) = 228 kWh in total. At a tariff of 5.5 ₽/kWh: 228 × 5.5 = 1254 ₽.
To determine the electricity consumption based on the power of the device, use the formula: Consumption (kWh) = Power (W) × Time (h) / 1000. The power of the device is usually indicated on the label or in the instructions. For example, a 2000 W electric kettle operating for 30 minutes (0.5 hours): (2000 × 0.5) / 1000 = 1 kWh. In the calculator, simply enter the power in watts and operating time - the calculation will be performed automatically.
To calculate the electricity consumption of household appliances, add each appliance to the calculator with its parameters: power (W), operating hours per day, number of days of use. The calculator will automatically calculate the consumption of each device in kWh and their cost. Typical values: refrigerator (150 W, 24 hours) ≈ 108 kWh/month, washing machine (2000 W, 1.5 hours) ≈ 90 kWh/month, TV (100 W, 6 hours) ≈ 18 kWh/month.
To calculate the cost of electricity online for free, use our calculator. Enter the power of the device in watts, operating hours per day, number of days and tariff per 1 kWh. The calculator will instantly calculate the kWh consumption and cost for each appliance, as well as the totals. You can add an unlimited number of devices and export the results to CSV. The service is completely free and does not require registration.
To calculate the cost of electricity, use the current tariff in your region. Tariffs vary by region and can be single-tariff (single tariff) or multi-tariff (different tariffs day and night). The average tariff in Russia is 4-6 ₽/kWh. The exact tariff can be found on the website of your energy supply company or on your electricity receipt. In the calculator you can specify an individual tariff for each device.
To calculate the energy consumption of a refrigerator, keep in mind that it operates 24 hours a day, but with cycling (turning the compressor on/off). The average power of a refrigerator is 100-200 W. Formula: (Power × 24 hours × Days) / 1000. For example, a 150 W refrigerator for 30 days: (150 × 24 × 30) / 1000 = 108 kWh. In the calculator, enter the power of the refrigerator (100-200 W), 24 hours a day and the number of days - get an accurate calculation.
To calculate the energy consumption of a washing machine, take into account its power (usually 1500-3000 W) and the operating time of one wash cycle (usually 1-2 hours). Formula: (Power × Operating hours × Number of washes) / 1000. For example, a 2000 W washing machine running 1.5 hours 30 times a month: (2000 × 1.5 × 30) / 1000 = 90 kWh. In the calculator, enter the power of the washing machine, the operating hours of one wash and the number of days of use.
To calculate the cost of electricity per month, enter into the calculator the power of each device, operating hours per day and set the number of days to 30. The calculator will automatically calculate the consumption of each device per month and their cost. Sum up the consumption of all appliances and multiply by the tariff. For example, with a total consumption of 200 kWh and a tariff of 5.5 ₽/kWh: 200 × 5.5 = 1100 ₽ per month.
To calculate the energy consumption of an air conditioner, take into account its power (usually 1000-3000 W depending on the model) and operating time. Air conditioners operate cyclically, turning on when the set temperature is reached. Formula: (Power × Operating hours × Days) / 1000. For example, a 1500 W air conditioner running 8 hours a day for 90 days: (1500 × 8 × 90) / 1000 = 1080 kWh per season. In the calculator, enter the power and actual operating time.
To calculate the electricity consumption of a TV, take into account its power (usually 50-200 W for LED TVs, 100-400 W for older models) and viewing time. Formula: (Power × Operating hours × Days) / 1000. For example, a 100 W LED TV operating 6 hours a day for 30 days: (100 × 6 × 30) / 1000 = 18 kWh per month. Modern LED TVs consume significantly less energy than older models.
To calculate the cost of electricity using a two-tariff meter, you need to divide consumption into daytime and nighttime. The daytime tariff is usually higher (5-6 ₽/kWh), the night tariff is lower (2-3 ₽/kWh). You can create two devices in the calculator: one with a day rate and operating hours during the day, the other with a night rate and operating hours at night. For example, the device works 16 hours during the day and 8 hours at night - create two records with the corresponding tariffs.
The power of the device is usually indicated on the label, in the instructions or on the device case in watts (W) or kilowatts (kW). If stated in kW, multiply by 1000 to get watts. The power can also be found in the technical specifications on the manufacturer’s website. For some appliances (refrigerators, air conditioners), consider the average power, as they operate cyclically. In the calculator, enter the power in watts for an accurate calculation.
To calculate your computer's power consumption, take into account the power of the power supply (usually 300-800 W) and operating time. Actual consumption depends on the load: simple tasks (watching movies) - 50-100 W, games - 200-400 W. Formula: (Power × Operating hours × Days) / 1000. For example, a 200 W computer running 8 hours a day for 30 days: (200 × 8 × 30) / 1000 = 48 kWh per month. In the calculator, use the average power taking into account the operating mode.
To calculate the energy consumption of a dishwasher, take into account its power (usually 1500-2500 W) and the time of one wash cycle (usually 1-2 hours). Formula: (Power × Operating hours × Number of cycles) / 1000. For example, a 2000 W dishwasher running 1.5 hours 30 times a month: (2000 × 1.5 × 30) / 1000 = 90 kWh. In the calculator, enter the power, the time of one cycle and the number of days of use.
To calculate the cost of electricity for the entire apartment, add into the calculator all the main appliances with their parameters: refrigerator, washing machine, TV, computer, lighting, air conditioning and others. The calculator automatically sums up the consumption of all appliances and calculates the total cost. Typical apartment consumption: 150-300 kWh per month. At a tariff of 5.5 ₽/kWh: 200 kWh × 5.5 = 1100 ₽ per month.
To calculate the energy consumption of a microwave oven, take into account its power (usually 800-1500 W) and operating time. The microwave operates in short bursts, usually 1-5 minutes. Formula: (Power × Operating hours × Days) / 1000. For example, a 1000 W microwave oven operating 0.5 hours (30 minutes) per day for 30 days: (1000 × 0.5 × 30) / 1000 = 15 kWh per month. In the calculator, convert minutes to hours (1 hour = 60 minutes).
To calculate the electricity consumption of the iron, take into account its power (usually 1500-2500 W) and time of use. The iron is usually used for 15-30 minutes at a time, several times a week. Formula: (Power × Hours of operation × Days) / 1000. For example, a 2000 W iron operating 0.5 hours a day for 30 days: (2000 × 0.5 × 30) / 1000 = 30 kWh per month. In the calculator, enter the power of the iron and the actual time of use.
To calculate the cost of a heater's electricity, take into account its power (usually 1000-2500 W) and operating time. Heaters can operate continuously during the cold season. Formula: (Power × Operating Hours × Days) / 1000. For example, a 2000 W heater running 8 hours a day for 90 days: (2000 × 8 × 90) / 1000 = 1440 kWh per season. At a tariff of 5.5 ₽/kWh: 1440 × 5.5 = 7920 ₽. Heaters are one of the most energy-consuming appliances.
To calculate the power consumption of a hair dryer, take into account its power (usually 1200-2200 W) and time of use. The hair dryer is usually used for 10-20 minutes at a time. Formula: (Power × Operating hours × Days) / 1000. For example, a 1800 W hair dryer operating 0.25 hours (15 minutes) per day for 30 days: (1800 × 0.25 × 30) / 1000 = 13.5 kWh per month. Despite the high power, the hair dryer only works for a short time, so the overall consumption is low.
To calculate the electricity consumption of LED lamps, take into account their power (usually 5-15 W per lamp) and operating time. LED lamps consume significantly less energy than incandescent lamps. Formula: (Power × Operating hours × Number of lamps × Days) / 1000. For example, 10 LED lamps of 10 W, operating 8 hours a day for 30 days: (10 × 8 × 10 × 30) / 1000 = 24 kWh per month. LED lamps are 8-10 times more economical than incandescent lamps.
To calculate the cost of electricity for a water heater, take into account its power (usually 1500-3000 W) and operating time. The water heater operates cyclically, turning on when the water cools. Formula: (Power × Operating hours × Days) / 1000. For example, a 2000 W water heater operating 4 hours a day for 30 days: (2000 × 4 × 30) / 1000 = 240 kWh per month. At a tariff of 5.5 ₽/kWh: 240 × 5.5 = 1320 ₽. Use insulation to save energy.
To calculate the energy consumption of a vacuum cleaner, take into account its power (usually 1500-2500 W) and time of use. The vacuum cleaner is usually used for 20-60 minutes at a time, several times a week. Formula: (Power × Operating hours × Days) / 1000. For example, a 2000 W vacuum cleaner running 0.5 hours a day for 30 days: (2000 × 0.5 × 30) / 1000 = 30 kWh per month. Despite the high power, the vacuum cleaner only works for a short time, so overall consumption is moderate.
To calculate the power consumption of a laptop, take into account its power (usually 30-90 W depending on the model and load) and operating time. Laptops consume significantly less energy than desktop computers. Formula: (Power × Operating hours × Days) / 1000. For example, a 60 W laptop running 8 hours a day for 30 days: (60 × 8 × 30) / 1000 = 14.4 kWh per month. Laptops are 3-5 times more economical than desktop computers.
To calculate the cost of electricity for an electric heated floor, take into account its power (usually 150-200 W per m²) and operating time. Heated floors usually work 8-12 hours a day during the cold season. Formula: (Power × Area × Operating hours × Days) / 1000. For example, underfloor heating 150 W/m² on an area of 10 m², operating 10 hours a day for 90 days: (150 × 10 × 10 × 90) / 1000 = 1350 kWh per season. At a tariff of 5.5 ₽/kWh: 1350 × 5.5 = 7425 ₽.
To calculate the power consumption of a multicooker, take into account its power (usually 600-1200 W) and operating time. The multicooker operates cyclically, turning on to maintain temperature. Formula: (Power × Operating hours × Days) / 1000. For example, an 800 W multicooker operating 2 hours a day for 30 days: (800 × 2 × 30) / 1000 = 48 kWh per month. A multicooker is more economical than an oven, as it retains heat better.
To calculate the electricity consumption of the oven, take into account its power (usually 2000-4000 W) and operating time. The oven is usually used for 1-2 hours at a time several times a week. Formula: (Power × Operating hours × Days) / 1000. For example, a 3000 W oven operating 1 hour per day for 30 days: (3000 × 1 × 30) / 1000 = 90 kWh per month. The oven uses a lot of energy but is not used often.
To export electricity calculation results to CSV, use the "Export CSV" button in the calculator. The results will be saved in a file with data about each device: name, power, operating hours, days, tariff, consumption and cost. The CSV file can be opened in Excel, Google Sheets or any other spreadsheet editor for further analysis or printing. Export is available for all added devices and totals.
Примерные значения потребления электроэнергии для различных бытовых приборов при типичном использовании:
150 Вт
2000 Вт
100 Вт
2000 Вт
1500 Вт
200 Вт
60 Вт
2000 Вт
*Потребление указано приблизительно и зависит от режима использования