DoAThing

Convert between units

Length, mass, volume, temperature, data and speed, with the arithmetic done exactly.

The number to convert.

A unit such as km, kg, c or gib.

A unit of the same kind — converting mass to length is refused.

Options

Decimal places in the result.

0 to 15

1 credit

Needs Value and From and To.

What it does

Also called: convert between units · kilograms to pounds · convert celsius to fahrenheit.

Use it from your own code

The same endpoint this page calls — no daily cap, 1 credit a call either way.

POST /v1/core/unit-convert

curl -X POST "$DOATHING_API/v1/core/unit-convert" \
  -H "x-api-key: $DOATHING_KEY" \
  -H "content-type: application/json" \
  -d '{"value": 100, "from": "c", "to": "f"}'

Length, mass, volume, temperature, data and speed, with the arithmetic done exactly.

Convert values between length, mass, volume, temperature, data-size, speed and time units.

Response

The result carries your remaining balance alongside it, so you can track spend without a second call.

{
  "result": 212,
  "from": "c",
  "to": "f",
  "dimension": "temperature",
  "request_id": "37f01edb-0163-42a1-ac51-0acaef979800",
  "credits_remaining": 96
}

Cost

1 credit per call, whether it is run from the site or from the API — the credential differs, the price does not. A new account starts with 20 credits.

A rejected request still costs a credit: the authorizer decrements before the tool validates. A call rejected for a missing or invalid key is free.

Parameters

Generated from the endpoint’s own validation, so this is exactly what it accepts. A body field goes at the top level; an option goes inside options.

NameInTypeDefaultNotes
value *bodynumber—The number to convert.
from *bodystring—A unit such as km, kg, c or gib. one of b, c, cm, cup, d, f, floz, fps, ft, g, gal, gb, gib, h, in, k, kb, kg, kib, km, kmh, kn, l, lb, m, m3, mb, mg, mi, mib, min, ml, mm, mph, mps, ms, nmi, oz, pt, qt, s, st, t, tb, tbsp, tib, tsp, wk, yd
to *bodystring—A unit of the same kind — converting mass to length is refused. one of b, c, cm, cup, d, f, floz, fps, ft, g, gal, gb, gib, h, in, k, kb, kg, kib, km, kmh, kn, l, lb, m, m3, mb, mg, mi, mib, min, ml, mm, mph, mps, ms, nmi, oz, pt, qt, s, st, t, tb, tbsp, tib, tsp, wk, yd
precisionoptionsinteger10Decimal places in the result. 0 to 15