Vivid Technologies
Fast, free tools that just work.
A growing suite of no-signup calculators and utilities. Get a real answer in seconds — no email walls, no clutter, no cost.
- Instant answers
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- 1 live · more soon
Answers in seconds
No forms, no email walls. Open a tool, get the number, get on with your day.
Genuinely accurate
Real formulas and maintained data — the kind of results you can cite, not rough guesses.
Free, forever
Ad-supported so the tools stay open to everyone. No paywalls, no trials, no accounts.
All tools
1 tool · 1 categoryHome & Energy
Generator Watts
Pick the appliances you want to run and get the exact generator size you need — running watts plus real surge math.
Open toolMore coming soonNew calculators and utilities ship regularly. Bookmark the page.