Calculateur de Generator Sizing
Estimate the generator wattage needed to run a sum of appliance loads with a safety margin.
Formula and method
This calculator computes Recommended generator size directly in your browser without sending data to an external server.
Mathematical formula
- Recommended generator size:
totalRunningWatts × (1+safetyMarginPct ÷ 100)
Variables and parameters
- Total running watts of appliances (totalRunningWatts): default value 3000 W.
- Safety margin (safetyMarginPct): default value 20 %.
Some formulas are undefined for certain input combinations (such as division by zero or logarithms of non-positive numbers). In those cases the live tool displays an alert instead of NaN.
Embed this tool
Paste this snippet into your own site or blog post to embed a live, working copy of this tool. It links back to the full page on SpecWhale.
Frequently asked questions
What equation and variables does Generator Sizing Calculator use?
Generator Sizing Calculator evaluates outputs such as <strong>Recommended generator size</strong> based on inputs including Total running watts of appliances, Safety margin. Check the Mathematical Method section for the explicit formula.
What happens if I enter invalid or zero values into Generator Sizing Calculator?
If an input combination is mathematically undefined (such as division by zero or negative square roots), SpecWhale alerts you gracefully rather than returning invalid NaN outputs.
Are my calculations in Generator Sizing Calculator saved or private?
All calculations are 100% private and run locally in your Web browser. Your numbers are never uploaded to any server, but can be saved locally to your device or exported as CSV/JSON.
Is Generator Sizing Calculator free to use?
Yes. Generator Sizing Calculator is completely free, has no usage limit, and does not require an account, email, or API key.
Does Generator Sizing Calculator store or upload my data?
No. Generator Sizing Calculator calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.
How accurate is Generator Sizing Calculator?
Generator Sizing Calculator uses a standard formula (see the Method section above for the exact expression). For high-stakes financial, medical, or legal decisions, confirm the result with a professional or an authoritative source before relying on it.
Can I embed Generator Sizing Calculator on my own website?
Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of Generator Sizing Calculator to your own blog post or page.