CPAP Electricity Cost Estimator

Estimate the electricity cost of running your CPAP with or without a heated humidifier. Provide your device wattage and nightly usage to see monthly and annual power bills, using your local kWh rate if you know it.

Check the device label or manual for average wattage.
Typical nightly runtime, including ramp and humidification.
Defaults to $0.16 per kWh if blank.
Defaults to 20 watts if your humidifier is integrated.
Defaults to 30 nights.

Electricity pricing and device wattage vary by model and location. For official costs, use your utility bill and manufacturer specifications.

Examples

  • 60-watt CPAP for 7 hours/night, 20-watt humidifier, $0.16/kWh, 30 nights ⇒ Energy per night: 0.56 kWh • Monthly electricity cost: $2.69 USD • Annual electricity cost: $32.70 USD
  • 80-watt travel CPAP for 6 hours/night, humidifier blank, $0.20/kWh, 30 nights ⇒ Energy per night: 0.60 kWh • Monthly electricity cost: $3.60 USD • Annual electricity cost: $43.80 USD

FAQ

Does this include replacement filter or mask costs?

No. It isolates electricity only. Add supply costs separately for a full therapy budget.

How should I handle variable electricity pricing?

Use your blended average rate across on-peak and off-peak hours or run separate scenarios for each rate period.

What if I skip humidification?

Set the humidifier wattage to 0 to see the cost with only the base device draw.

Additional Information

  • Assumes steady wattage; actual draw may vary during ramp, pressure changes, or humidifier heating cycles.
  • Result unit: USD for monthly and annual electricity costs; kWh for nightly consumption.
  • Power use is linear in runtime, so doubling hours roughly doubles the kWh and cost.

Related calculators