> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/data-api-sdk/data-model-fields-and-units/units-metric-only-no-imperial.md).

# Can I get data in imperial units instead of metric?

**All data is normalised to the standard metric/SI units defined in Terra's data models, regardless of the end user's device or provider unit settings. There is no option to receive imperial directly.**

Because every provider is normalised to the same units, you implement the metric-to-imperial conversion once on your side, typically a single multiplication per field.

Units are embedded in the JSON field names (for example duration fields in seconds, distance in metres), so the response structure itself documents each metric's unit. See the [data models reference](https://docs.tryterra.co/reference/health-and-fitness-api/data-models).