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.
Convert mass or amount-of-substance values using the units below. Select a material only when converting between mass and amount of substance. Enter values in separate rows, paste one value per line, or paste CSV with headers and select its value column. Input data is not uploaded. A draft is stored in this browser only when you save it; cancelling a calculation can also store a resume checkpoint here.
Enter a value
Save in this browser
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.
FreeNo sign-upPrivate — runs in your browser, nothing is uploaded
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
Example 1: Declared workflow
- 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.
Example 2: Missing input
- 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.
Example 3: Unsupported request
- 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
- No sign-up
- 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 below.
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