Gas Batch Calculator
Paste a bounded set of declared calculations for local processing. Each invalid or unsupported row receives its own status rather than corrupting the batch total.
FreeNo sign-upPrivate — runs in your browser, nothing is uploaded
Convert one declared mass or amount column using the mapped units below. A material is required only when converting between mass and amount. Use lines for one value per row or CSV with an explicit header mapping. Nothing is uploaded. A draft is stored only when you explicitly save it; a cancelled batch can save a browser-only resume checkpoint.
No local batch draft has been loaded in this view.
Verify a saved calculation passport
Paste a local passport JSON to verify its envelope and SHA-256 hashes in this browser. This checks integrity only; it does not rerun the physical calculation.
Quick answer
Batch work must preserve each row's basis and status. A bad row is not converted to zero, merged into a total or silently replaced with another model.
Formula & method
each row → validated request → independent status/result
- basis — declared physical interpretation and units
All calculations retain their declared conditions and do not invent missing physical context.
Examples
- Input
- Map one declared mass or amount input unit to an output unit, select a material when crossing between mass and amount, then inspect independent outcomes.
- Result
- A labeled browser-local result or an explicit unavailable state
- Why
- The result keeps the required material, state and model context visible.
- Input
- A required material, basis or state is absent
- Result
- Needs-input status
- Why
- The workspace asks for the missing dependency instead of assuming it.
- Input
- A request outside the admitted capability
- Result
- Unavailable status
- Why
- No ideal or zero-valued fallback is substituted.
When to use this tool
- Reviewing a bounded local table.
- Preparing independently status-tagged conversions.
- Exporting visible calculation contexts.
Common mistakes
- Assuming all rows share a hidden pressure basis.
- Treating invalid input as zero.
- Pasting more than the 5,000-row local limit.
Assumptions
What the result takes for granted:
- Rows are processed locally in the browser.
- A maximum of 5,000 rows applies.
- Unsupported rows remain distinct.
Limitations
Where this tool stops — and what to use instead:
- No spreadsheet upload or external processing is performed.
- Complex real-fluid batch work requires admitted states.
- A batch is not saved remotely.
Frequently asked questions
Does this send my data to a server?
No. This gas workspace processes the declared inputs in your browser.
Why can a result be unavailable?
The requested material, state, output or interpretation may need information that has not been declared or is outside the admitted capability.
Can I rely on this for safety-critical work?
No. Verify the stated basis and use applicable standards, instrument data and qualified engineering review for safety-critical or custody-transfer decisions.
Sources & references
External references open in a new tab. We are independent and not affiliated with these organizations.
- ✓ Free to use
- ✓ No sign-up required
- ✓ Runs entirely in your browser — nothing is uploaded.
- ✓ Formula and method shown above
Provided “as is” for general information only — results may be inaccurate, so verify before you rely on them. No warranty; use at your own risk.
Built and reviewed by HIFreeTools against the formula shown above and any authoritative references cited on this page. See our methodology and editorial standards.
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