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Your specific task is estimate cooling load in tons from room size, occupants, and equipment. Open the page, drop your input, get the result — typically under a second.
Your goal is calculate cfm from air velocity and duct cross-section area. 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. Cool Load focuses on estimate cooling load in tons from room size, occupants, and equipment; CFM Calc focuses on calculate cfm from air velocity and duct cross-section area. 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 Cool Load and CFM Calc work without signup. We only ask for an email if you decide to subscribe to a paid plan.