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Chemistry
Calculate specific gravity from substance and reference densities.
Open Specific GravityYour specific task is convert parts per million to percentage concentration. Open the page, drop your input, get the result — typically under a second.
Your goal is calculate specific gravity from substance and reference densities. 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. ppm to % focuses on convert parts per million to percentage concentration; Specific Gravity focuses on calculate specific gravity from substance and reference densities. 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 ppm to % and Specific Gravity work without signup. We only ask for an email if you decide to subscribe to a paid plan.