Appliance Running Cost Calculator
Calculate the annual and lifetime running cost of any appliance. Compare old vs new models to see if an energy-efficient upgrade pays off.
Enter Your Values
Using shared profile · 3,500/mo · EUR — edit on Dashboard
Results update automatically as you change values.
Cost Breakdown
10-Year Cost Split
Click chart to expand
Annual Running Cost Over Time
Click chart to expand
Scenario Analysis
How the outcome shifts if your assumptions turn out better or worse than expected.
30% lower effective rate
At your stated values
20% more hours/day
Compare Scenarios
Pin up to 3 and see them side by sideSet your inputs, then Pin current to save this scenario. Pin a few variations to compare their scores and outcomes here.
Confidence & Assumptions
The outcome shifts meaningfully with your assumptions. Sensible, but revisit the key inputs.
Year 1 Cost: €79 (worst) → €66 (expected) → €46 (best)
These estimates are for informational purposes only and do not constitute financial advice. Actual results may vary based on factors not captured in this calculator.
How This Calculator Works
What this calculator does
This calculator works out the daily, monthly, and annual electricity cost of running any appliance, and optionally compares it to an older model to see if upgrading pays off.
How the calculation works
Daily kWh = (Watts ÷ 1000) × Hours per day. Annual cost = kWh × electricity price. With comparison enabled, we calculate payback period for a more efficient replacement.
Formula
Daily kWh = Watts / 1000 × Hours Annual Cost = Daily kWh × 365 × Price Payback = (New Price - Old Price) / Annual Saving
Sources & defaults
- kWh = (watts ÷ 1000) × hours
Annual cost = daily kWh × 365 × unit price
Example
150W fridge running 24h/day: 3.6 kWh/day, 1,314 kWh/year. At €0.30/kWh = €394/year. An old 250W model costs €657/year — saving €263/year.
How to Use This Calculator
- 1Enter your numbers
Fill in the inputs for Appliance Running Cost Calculator. Defaults are realistic starting points — replace them with your actual figures.
- 2Understand the calculation
Daily kWh = (Watts ÷ 1000) × Hours per day. Annual cost = kWh × electricity price. With comparison enabled, we calculate payback period for a more efficient replacement.
- 3Review results and scenarios
Check metrics, cost breakdown, comparison tables, and best / expected / worst scenarios. Use sliders to stress-test assumptions.
- 4Decide with the verdict
Read the decision engine recommendation and FAQ. Example: 150W fridge running 24h/day: 3.6 kWh/day, 1,314 kWh/year. At €0.30/kWh = €394/year. An old 250W model costs €657/year — saving €263/year.
Factors to Consider
- Energy label ratings (A+++) indicate efficiency
- Standby power adds cost even when "off"
- Off-peak electricity tariffs reduce running costs
- Heat-generating appliances (dryers, ovens) cost the most
- Repair vs replace when old appliances fail
Common Mistakes
- Using rated power instead of actual consumption (fridges cycle on/off)
- Forgetting standby power draw
- Not comparing total cost of ownership (purchase + energy)
- Ignoring that efficient models often cost more upfront
Frequently Asked Questions
How do I find my appliance wattage?+
Check the energy label, manual, or a plug-in power meter. Fridges typically show annual kWh on the label — divide by 365 for daily use.
Is it worth buying an A+++ appliance?+
If the energy saving exceeds the price premium within the appliance lifetime, yes. Use this calculator with both old and new wattage to find the payback period.
Which appliances use the most electricity?+
Tumble dryers, electric ovens, air conditioners, and old fridges/freezers are typically the biggest consumers. Heating and hot water (if electric) dominate overall bills.
This calculator provides estimates for informational purposes only and does not constitute financial, investment, tax, or legal advice. Always consult a qualified professional before making important financial decisions.
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