Energy Consumption Calculator
Calculate energy consumption and cost for any device or system. The first step in any energy efficiency project.
Free · No signup · By the analysts at Blackridge Research · Updated 2026-07-18
Inputs
Results
What this means
Adjust the inputs to calculate.
About the Energy Consumption Calculator
Energy consumption is the first step in any energy efficiency project.
This calculator computes energy use and cost for any device.
Formula
Consumption = Power × Hours × Days / 1000 | Cost = Consumption × Rate
- E
- — Energy Consumption (kWh)
- P
- — Power (W)
- H
- — Hours per Day
- D
- — Days
- R
- — Electricity Rate ($/kWh)
How to use this calculator
- 1
Enter power rating
The device power rating in watts.
- 2
Enter hours per day
How many hours the device runs daily.
- 3
Enter days
Number of days to calculate for.
- 4
Enter electricity rate
Cost per kWh.
Example calculations
Industrial motor energy cost
A 50 kW motor runs 12 hours/day for 300 days at $0.10/kWh.
Consumption = 50 × 12 × 300 = 180,000 kWh. Cost = 180,000 × $0.10 = $18,000.
- Annual consumption:
- 180,000 kWh
- Annual cost:
- $18,000
- Monthly cost:
- $1,500
The motor costs $18,000 annually to operate.
Interpreting your results
Energy consumption drives operational costs and environmental impact.
Efficiency improvements directly reduce energy consumption and cost.
Need the market data behind this calculator?
The Energy Consumption Calculator is only as good as its inputs. Blackridge Research publishes syndicated market reports with vetted market sizes, growth rates, and competitive landscapes across 40+ industries — and builds custom studies when the shelf report doesn't exist.
Industry applications
Business
- Energy management: track and manage energy costs.
- Efficiency planning: identify energy savings opportunities.
- Budgeting: forecast energy costs.
Construction
- Building operations: calculate building energy use.
- Equipment selection: compare equipment energy costs.
Research
- Energy analysis: analyze consumption patterns.
- Efficiency studies: measure efficiency improvements.
Common mistakes to avoid
-
✗ Using peak power instead of average
Use average power consumption for accurate results.
-
✗ Ignoring standby consumption
Many devices consume power even when off.
Frequently asked questions
›How do I reduce energy consumption?
Use energy-efficient equipment, reduce operating hours, and improve maintenance.
›What is the average electricity rate?
US average is $0.12-$0.15/kWh for commercial, $0.10-$0.12 for industrial.
Glossary
- Energy consumption:
- The amount of energy used over a period.
- Power rating:
- The maximum power a device consumes.
- Standby consumption:
- Energy consumed when a device is not in active use.
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