Appliance Power Usage Calculator
Add appliances and see Wh, Ah and £/day at your tariff.
About the Appliance usage calculator
Use this appliance power usage calculator for van leisure battery & solar setup. Add appliances and see Wh, Ah and £/day at your tariff.
Enter your appliance usage details
Appliances
Useful when comparing to mains hookup.
Your appliance usage results
Daily energy
675 Wh
At 12 V
56.3 Ah
Battery draw / day
Cost / day
£0.18
@ £0.27 / kWh equiv.
Why appliance usage matters for van leisure battery & solar setup
Plan with confidence
Getting your appliance usage numbers right early avoids costly rework, undersized components and surprises on the road.
Related battery & solar tools
Pair this with the rest of our battery & solar calculators to plan your full van conversion.
Appliance usage calculator FAQ
- What does the Appliance Power Usage Calculator do?
- Add appliances and see Wh, Ah and £/day at your tariff. It is designed for van leisure battery and solar so you can plan with confidence.
- Is the appliance usage calculator free to use?
- Yes. All VanTools calculators, including the Appliance Power Usage Calculator, are free to use with no sign-up required.
- How accurate are the appliance usage results?
- Results are estimates based on the values you enter and standard van leisure battery and solar assumptions. Always sanity-check against manufacturer data and your real-world conditions.
- Can I share or save my appliance usage calculation?
- Yes. Use the Share button to copy a link that includes your inputs, or use Export to download a PDF or image of your results.