Appliance Electricity Cost Calculator

Enter the appliance power in watts, the hours it runs per day and your electricity rate. The calculator shows the energy used and the cost per day, month and year.

7-in-1 Pro Calculators

±1% Formula Accuracy

EN/RU/ES 3 Languages

Wall & Ceiling Paint Estimator

Room Dimensions

Room Length m

Room Width m

Wall Height m

Include Ceiling?

Doors, Windows & Coverage

Number of Doors

Number of Windows

Number of Coats

Paint Coverage m²/L

Container Size L

Price per Container $

Ceramic & Porcelain Tile Estimator

Surface Dimensions

Area Length m

Area Width m

Tile Size, Waste & Packaging

Tile Length cm

Tile Width cm

Grout Joint Gap mm

Cutting / Waste Reserve %

Coverage per Box m²

Price per Box $

Laminate & Hardwood Flooring Estimator

Room Floor Dimensions

Room Length m

Room Width m

Plank Size, Pattern & Packaging

Plank Length cm

Plank Width cm

Installation Pattern (Waste %)

Area per Pack m²

Price per Pack $

Underlayment Price per Area $

Wallpaper Rolls & Paste Calculator

Room Dimensions

Room Length m

Room Width m

Wall Height m

Roll Dimensions & Pattern Repeat

Roll Width cm

Roll Length m

Pattern Repeat (Offset) cm

Number of Doors

Number of Windows

Price per Roll $

Drywall Sheets, Framing & Screws Estimator

Structure Type & Sheet Dimensions

Construction Type

Single Sheet Area m²

Wall / Room Length m

Height (or Ceiling Width) m

Price per Drywall Sheet $

Concrete Slab, Screed & Bags Calculator

Slab / Pour Dimensions

Slab Length m

Slab Width m

Thickness / Depth cm

Reserve, Pre-Mix Bags & Pricing

Spillage / Grade Reserve %

Dry Mix Bag Size kg

Price per Bag $

Appliance Electricity Cost Calculator

Appliance Power & Usage Schedule

Appliance Name

Power Consumption W

Hours Used per Day h

Days Used per Month 1–31

Electricity Rate (per kWh) $

Live Calculation Summary

Paint required

9.1 L

4 cans × 2.5 L

Net Requirement 88% / 12% Reserve / Deductions

Compare Current Material Prices:

Home Depot Lowe's Amazon DIY Leroy Merlin

My Renovation Shopping List & Budget

Category / Calculation	Required Quantity	Estimated Cost

Frequently asked questions

How do I calculate the electricity cost of an appliance?

Multiply the power in watts by the hours of use and divide by 1000 to get kWh, then multiply by your rate per kWh. For example, 1500 W for 6 hours is 9 kWh per day.

Where do I find an appliance’s wattage?

Look at the label on the back or bottom of the device, or in its manual. If only amps and volts are given, multiply them to get watts.

Does an air conditioner or fridge run all day?

No, they cycle on and off. An air conditioner or fridge typically runs 40–70% of the time, so enter the actual hours of compressor operation rather than 24.

How can I lower my electricity bill?

Switch to LED lighting, choose appliances with a high energy class, unplug devices that draw standby power and run heavy loads when your tariff is lowest.