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Two marine & boating tools, side-by-side. See which fits your task.
Marine & Boating
Calculate theoretical boat speed from propeller pitch and RPM.
Open Prop PitchMarine & Boating
Reference for propeller types: fixed, folding, feathering, and variable pitch props.
Open Propeller TypesYour specific task is calculate theoretical boat speed from propeller pitch and rpm. Open the page, drop your input, get the result — typically under a second.
Your goal is reference for propeller types: fixed, folding, feathering, and variable pitch props. Same approach: paste in, get the result, move on. No account, no upload.
Both tools live in the same category, so the choice depends on the exact subtask. Prop Pitch focuses on calculate theoretical boat speed from propeller pitch and rpm; Propeller Types focuses on reference for propeller types: fixed, folding, feathering, and variable pitch props. Try whichever description matches your goal more closely — they're both free.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both Prop Pitch and Propeller Types work without signup. We only ask for an email if you decide to subscribe to a paid plan.