Smartphone Charger Energy Cost Calculator
USB wall charger for daily smartphone battery recharging.
Power Draw
20W
watts
Annual kWh
22
avg usage
Annual Cost
$3
avg national
CO₂/Year
0.02 tons
carbon impact
Smartphone Charger Cost Calculator
Customize usage and your state's electricity rate for accurate cost estimates.
Daily Cost
$0.01
Monthly Cost
$0.24
Annual Cost
$3
Lifetime Cost
$9
Energy Saving Opportunities
Energy Saving Tips
- ✓Unplug charger when not in use
- ✓Use original or certified chargers
- ✓Avoid overnight charging
Compare Alternatives
| Appliance | Watts | Annual kWh | Annual Cost |
|---|---|---|---|
| Smartphone Charger (current) | 20W | 22 | $3 |
| Wireless Charger | 10W | 22 | $3 |
Smartphone Charger Cost Summary
Purchase Price (one-time)$20
Annual Energy Cost (at 13¢/kWh)$3
Lifespan 3 years
Lifetime Energy Cost (energy only)$9
Total Cost of Ownership (purchase + energy)$29
Smartphone Charger Energy FAQ
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