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Unit converter
Data
Convert between 104 units of length, mass, volume, area, temperature, speed, time, data, pressure, energy, power and angle.
What it does
- About 110 units in 12 categories
- Symbols or names: lb, lbs or pounds
- One unit, or the whole category at once
- Choose your decimal places
Good for
- Recipe and product sites
- Shipping weights and sizes
- Engineering tools
Factors are the exact definitions where one exists: an inch is exactly 25.4 mm and a pound exactly 0.45359237 kg.
Example
GETPOST https://bloodweb.net/api/v1/unit-convert
curl -H "Authorization: Bearer YOUR_KEY" "https://bloodweb.net/api/v1/unit-convert?value=5&from=lb&to=kg"Options
| Name | Description |
|---|---|
value
required |
The amount to convert. |
from
required |
The unit it is in: a symbol (kg, mph, GiB) or a name (pounds, fahrenheit). |
to
|
The unit to convert to. Leave out for every unit in the same category. |
precision
|
Round results to this many decimal places. Left out, results keep 12 significant figures. |
Returns
JSON: {"value", "from", "to", "result", "category"}, or "results" for every unit when "to" is left out.