Bulk Unit Converter
Paste a column of numbers or a whole table, choose the units, and every value is converted at once; copy the result back to Excel or download it as CSV.
One value per line, or columns separated by tabs, commas or semicolons. Numbers like 1.5e-3, 1 500 and 1,5 work. Units written in a cell (e.g. "125 Pa", "0.5 in WC") are recognised.
3 converted from centimeter [cm] to inch [in].
| Column 1 | Result (in) |
|---|---|
| 1 | 0.3937007874 |
| 10 | 3.937007874 |
| 100 | 39.37007874 |
How to Convert a List of Values
- Choose the quantity tab: pressure, flow rate, face velocity, area, volume or time.
- Paste a list or table into the box (one value per line, or columns from a spreadsheet).
- Pick the From unit (used for cells without a unit) and the To unit.
- Check the results table, then Download CSV or Copy table back into your spreadsheet.
Supported Input
- One value per line, or a table separated by tabs (spreadsheet paste), commas, semicolons or vertical bars.
- Numbers: 125, -3.2, .5, 1.5e-3, 1.5×10^-3, 1 500, 1,500 and decimal commas such as 1,5.
- Units written in a cell, using symbols or common names: Pa, kPa, psi, in WC, mmAq, CFM, m3/h, LPM, gal, cfm/ft2, L/m2/s …
- A text first row is treated as a header and kept in the output.
Frequently asked questions
Can I paste directly from Excel or Google Sheets?
Yes. Copied cells arrive tab-separated; the converter detects the columns, picks the numeric one, and keeps a text first row as the header. Use "Copy table" to paste the result back into the spreadsheet.
Can the list mix different units?
Yes. Write the unit after the number, for example "125 Pa", "0.5 in WC" or "2.5 mbar". Cells without a unit use the selected From unit. Unrecognised units are flagged instead of being guessed.
Does it handle decimal commas and scientific notation?
Yes: 1,5 is read as 1.5, 1 500 and 1,500 as 1500, and 1.5e-3 or 1.5×10^-3 as 0.0015. In comma-separated files, use a semicolon delimiter if your numbers use decimal commas.
Is my data uploaded anywhere?
No. The conversion runs entirely in your browser; nothing you paste is sent to a server.
How many rows can I convert?
There is no fixed limit. The page shows the first 300 rows, and the CSV download and copy include every row.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology .
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Bulk Unit Converter. Retrieved October 17, 2026, from https://scientificconverters.com/calculators/bulk-unit-converter/
IEEE
Scientific Converters, "Bulk Unit Converter," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/calculators/bulk-unit-converter/