Energy
Energy tools estimate what electricity, appliances and EV charging actually cost using the rates you provide.
They are planning calculators, not utility bills — assumptions such as tariff and usage are listed on each page. A session cost is kWh times the unit rate; standing charges and time-of-use bands are not invented for you.
Nameplate watts are often a maximum. The electricity-cost guide walks through kettle minutes versus heater hours before you open the calculator. The Nordic bill guide says which per-kWh lines to add, and which fixed grid fee to leave out.
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Electricity Cost
Estimate energy (kWh) and cost from power in watts or kW, hours of use and price per kWh.
EV Charging Cost
Estimate battery energy added, grid energy and charging cost from capacity, start/target %, price and efficiency.
Appliance Energy Cost
Estimate daily and monthly kWh and cost for an appliance from watts, hours per day, days per month and price.
Guides
How Electricity Cost Is Calculated
Cost for a session is kilowatt-hours times the unit price. Kilowatt-hours are kilowatts times hours. The nameplate is often a maximum, and the bill also has standing charges this identity ignores.
Nordic Electricity Bills and the kWh Rate
A Swedish electricity bill is not one price times kilowatt-hours. Retail energy, the local grid’s per-kWh fee and energy tax are separate lines. The fixed grid subscription does not belong in a session cost.
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5 tools
Electricity Cost
Estimate energy (kWh) and cost from power in watts or kW, hours of use and price per kWh.
Appliance Energy Cost
Estimate daily and monthly kWh and cost for an appliance from watts, hours per day, days per month and price.
EV Charging Cost
Estimate battery energy added, grid energy and charging cost from capacity, start/target %, price and efficiency.
EV Charging Time
Estimate ideal charging time from battery size, start/target % and charger power. Real sessions are often slower.
kWh Cost
Multiply kilowatt-hours by your electricity price to get a total cost.