GSM ↔ US basis weight
API · /paper-api
Paper Weight API
Paper-weight maths as an API, computed locally and deterministically. The convert endpoint converts between grammage (GSM, grams per square metre — the universal measure) and the US basis weight in pounds, which depends on the paper stock type: bond/writing (basis 17×22 in), text/book/offset (25×38), cover (20×26), index (25.5×30.5), tag (24×36) and bristol (22.5×28.5). The weight endpoint computes the mass of a single sheet, a 500-sheet ream and the M-weight (the weight of 1000 sheets in pounds) at a given grammage and sheet size — accepting dimensions in millimetres, centimetres, inches or metres, or a named size (A3–A5, letter, legal, tabloid). The stocks endpoint is a reference of the US stock types with their conversion factors and basis sizes. Everything is computed locally and deterministically, so it is instant and private. Ideal for printing and publishing tools, stationery and packaging apps, print-shop estimators, and shipping-weight calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is paper grammage and basis weight; for general mass-unit conversion use a unit-conversion API.
API salute
salutare- Tempo di attività
- 100.00%
- Sondaggi del server · 24 ore su 24
- Latenza media
- 83 ms
- Sondaggi del server · 24 ore su 24
- Abbonati
- 4,335
- attiva
- Chiamate totali
- 76
- ultimi 7 giorni
Prezzi
Scegli un livello: fatturazione mensile, annullamento in qualsiasi momento.
Free
Gratis
- 12,435 chiamate/mese
- 2 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 12,435 llamadas/mes
- 2 solicitudes/seg
- Convertir + peso + existencias
- Sin tarjeta de crédito
Starter
€13.95 /mese
- 22,050 chiamate/mese
- 8 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 22.05k calls/month
- 8 req/sec
- Ream & M-weight, named sizes
- Email support
Pro
€33.85 /mese
- 270,500 chiamate/mese
- 20 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 270.5k calls/month
- 20 req/sec
- Printing / publishing pipelines
- Priority support
Mega
€71.85 /mese
- 1,395,000 chiamate/mese
- 50 richieste/secondo
- Tetto rigido (429 sopra la quota, nessuna eccedenza)
- 1.395M calls/month
- 50 req/sec
- Platform scale
- Dedicated SLA
Costruito da
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api.oanor.com/screenprint-api
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api.oanor.com/musicbrainz-api
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Frammenti di codice
Iscriviti per ottenere una chiave API, quindi chiama qualsiasi percorso sotto il tuo slug.
curl https://api.oanor.com/paper-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/paper-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/paper-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
"https://api.oanor.com/paper-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())
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