Science & Nature · Reference dataset
Units of Measurement
Measurement units and symbols, grouped by what they measure and the system they belong to.
Download options
Preview the records
The 10 most recently added of 61 records · Select a column heading to sort.
| ID | Unit name | Symbol | Quantity | System |
|---|---|---|---|---|
| 52 | Degree Fahrenheit | degF | Temperature | US customary |
| 53 | Erg | erg | Energy | CGS |
| 54 | Dyne | dyn | Force | CGS |
| 55 | Gauss | G | Magnetic flux density | CGS |
| 56 | Poise | P | Dynamic viscosity | CGS |
| 57 | Calorie | cal | Energy | Metric |
| 58 | Bar | bar | Pressure | Metric |
| 59 | Atmosphere | atm | Pressure | Other |
| 60 | Nautical mile | nmi | Length | Other |
| 61 | Knot | kn | Speed | Other |
CSV / JSON / XML
Put this data to work.
All 61 records, in your choice of format.
- This dataset and the rest of the catalog
- Complete CSV, JSON, and XML files
- Category ZIPs and API access
365 days of access to the catalog. One payment, no automatic renewal.
Your key arrives by email after payment. Use it here to download the complete file.
Already have a pass?
Your key is used for this request and is not saved by this page.
Commercial use is allowed, free or paid.
Downloaded a CSV? Convert CSV to JSON, generate SQL inserts, remove duplicate lines, or sort a list with the free tools.
Scope and sources
Last checked against sources: October 15, 2026.
Last changed: July 19, 2026. This is when we last changed the data or its description. It doesn’t mean the data runs up to that date.
- NIST Special Publication 811, Guide for the Use of SI (used with permission)
A complete download includes all 61 records currently held in this dataset. Check the description and sources to decide whether its scope fits your project.
Use this dataset through the API
GET https://mysafeinfo.com/api/data/unitsofmeasurementChoose a format, sort, or request fewer rows. A pass key gives access to the complete dataset. See the examples and parameters.
Without a pass, sorting and randomization apply only to the fixed 10-row sample.