Electric Toothbrush vs Tablet Charger: Which Costs Less to Run?
Using typical wattage and daily use, an electric toothbrush costs about $0.001 per month, compared with $0.21 for a tablet charger. That is a gap of $0.209 a month at $0.175/kWh.
Side by side
| Electric Toothbrush | Tablet Charger | |
|---|---|---|
| Power | 2 W | 20 W |
| Hours per day | 0.1 | 2 |
| Cost per hour | $0.0004 | $0.004 |
| Cost per day | $0.0000 | $0.007 |
| Cost per week | $0.0002 | $0.049 |
| Cost per month | $0.001 | $0.21 |
| Cost per year | $0.013 | $2.56 |
| Energy per year | 0.07 kWh | 14.6 kWh |
Based on $0.175 per kWh (US average).
Which should you choose?
These two appliances do different jobs, so the cheaper one is not automatically the better choice. The figures use typical wattage, typical daily hours and the share of time each runs at full power.
Want your own numbers? Open either calculator and enter your hours and rate: Electric Toothbrush or Tablet Charger.