電気代計算機

Use the free online 電気代計算機 tool. Fast, private and easy to use — runs entirely in your browser. Part of our 日常計算機 collection.

燃料費計算機

Trip distance (km) Fuel efficiency (km per litre) Fuel price (per litre)

Estimate what a road trip will cost in fuel from distance, consumption and pump price.

Distance driven (km) Fuel used (litres)

Measure your real fuel economy in km/L, L/100km and US MPG from one fill-up.

Appliance power (W) Hours used per day Price per kWh

See what any appliance costs to run per day, month and year from its wattage.

Product A price Product A quantity Product B price Product B quantity

Compare two pack sizes by price per unit and instantly see which is the better deal.

File size (MB) Connection speed (Mbps)

Estimate how long a file will take to download at your internet speed.

Wake-up time (HH:MM)

Find bedtimes that complete full 90-minute sleep cycles so you wake up refreshed.

Battery capacity (mAh) Charger current (mA)

Estimate how long a battery takes to charge, both ideal and with typical losses.

Grade points (e.g. 4, 3, 2) Credits (e.g. 3, 3, 2)

Compute a credit-weighted grade point average from your course grades and credit hours.

Is the 電気代計算機 free to use?

Yes. The 電気代計算機 is completely free with no sign-up, no limits and no watermarks. You can use it as many times as you like.

Is the 電気代計算機 safe and private?

Absolutely. The 電気代計算機 runs entirely in your browser, so your data never leaves your device and nothing is uploaded to a server.

Do I need to install anything to use the 電気代計算機?

No installation is needed. The 電気代計算機 works instantly online in any modern browser on desktop, tablet or mobile.

Does the 電気代計算機 work on mobile phones?

Yes. The 電気代計算機 is fully responsive and works smoothly on iPhone, Android and any other device.