Latitude/longitude → UTM
API · /utm-api
UTM Coordinate API
healthy
3,487 Subscribers
UTM ↔ geographic coordinate conversion as an API, computed locally and deterministically on the WGS84 ellipsoid. The from-latlon endpoint projects a latitude and longitude into the Universal Transverse Mercator grid — returning the zone (1–60), the hemisphere, the latitude band letter, and the easting and northing in metres — using the Snyder/USGS Transverse Mercator series, which is accurate to a few millimetres within a zone; New York (40.7128, −74.0060) maps to zone 18N at about 583960 E, 4507351 N, and the canonical 45°N on a central meridian gives a northing of exactly 4982950.40 m. The to-latlon endpoint inverts it, recovering the latitude and longitude from a zone, hemisphere, easting and northing. Each zone is 6° of longitude wide with a 500000 m false easting on its central meridian and a 10000000 m false northing in the southern hemisphere. Latitude is valid from −80° to 84°. Everything is computed locally and deterministically, so it is instant and private. Ideal for GIS, surveying, mapping, geospatial, drone-mapping and location app developers, coordinate-conversion and grid-reference tools, and spatial software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 2 endpoints. This is UTM on WGS84; for the polar regions use UPS and for an EPSG-code lookup use an EPSG API.
api.oanor.com/utm-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 83 ms
- Server probes · 24h
- Subscribers
- 3,487
- active
- Total calls
- 57
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 3,800 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- 3,800 calls/month
- 2 req/sec
- UTM ↔ lat/lon (WGS84)
- No credit card
Starter
€6.30 /month
- 38,000 calls / month
- 6 requests / second
- Hard cap (429 above quota, no overage)
- 38,000 calls/month
- 6 req/sec
- Zone, band, hemisphere, mm accuracy
- Email support
Pro
€18.20 /month
- 180,000 calls / month
- 15 requests / second
- Hard cap (429 above quota, no overage)
- 180,000 calls/month
- 15 req/sec
- GIS & surveying pipelines
- Priority support
Mega
€55.00 /month
- 1,075,000 calls / month
- 40 requests / second
- Hard cap (429 above quota, no overage)
- 1,075,000 calls/month
- 40 req/sec
- Platform scale
- Dedicated SLA
Built by
Related APIs
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Chile Economy API
Live Chilean economic indicators from mindicador.cl (Banco Central de Chile data). Chile runs on indicators no other currency uses: the UF (Unidad de Fomento) is an inflation-indexed unit that prices mortgages, rents and contracts, and the UTM (Unidad Tributaria Mensual) is the tax unit — both quoted in pesos and updated daily. The feed also carries the observed dollar and euro, the IPC inflation index, the IMACEC activity index, the central bank policy rate (TPM), the copper price (Chile is the world's top copper exporter) and unemployment. The indicators endpoint returns every indicator's latest value; the indicator endpoint returns one with its recent series; the history endpoint returns a full year of daily values; the convert endpoint converts amounts between the peso, UF, UTM, dollar and euro. Read live, nothing stored. This is Chile's own UF/UTM, FX, rate and copper indicator layer — distinct from generic FX feeds.
api.oanor.com/chile-api
Coordinate Conversion API
Convert geographic coordinates between every common format. Turn a latitude/longitude pair into a Plus Code (Open Location Code, as used by Google Maps), an MGRS reference (Military Grid Reference System), a UTM coordinate (zone, hemisphere, easting, northing) or a DMS string (degrees-minutes-seconds) — and convert any of those back to latitude/longitude. The /v1/all endpoint returns every format at once. Each conversion runs fully locally (no third-party service) so responses are instant and always available. Live, no cache. 6 endpoints. Built for GIS, mapping, surveying, logistics, aviation, emergency services and any app that exchanges coordinates between systems. Complements geohash and CRS lookups without overlap. No upstream key.
api.oanor.com/geoconvert-api
Geohash API
Work with geohashes through a fast, fully-local API. Encode a latitude/longitude pair into a geohash at any precision (1–12), decode a geohash back to its centre coordinates with the exact bounding box and error margins, list the eight neighbouring geohash cells (north, north-east, east and so on), or get the bounding box, centre and dimensions of a cell. Geohashes turn coordinates into short sortable strings that are perfect for spatial indexing, proximity grouping and map tiling. Pure server-side computation with no third-party upstream, so responses are instant and the service is always available. Ideal for geospatial indexing and search, proximity and nearby queries, map tiles and clustering, IoT and fleet tracking, and location bucketing in databases.
api.oanor.com/geohash-api
Geo Distance API
A fast, fully-local great-circle geospatial toolkit: compute the haversine distance between two coordinates (in km, m, miles or nautical miles), the initial and final compass bearing, the geographic midpoint, the destination point reached from an origin on a bearing at a given distance, and a bounding box around a center for a radius. Pure server-side compute, no third-party upstream, so responses are instant and always available. Ideal for logistics, delivery and fleet apps, store locators, real-estate search, travel and mapping tools.
api.oanor.com/geo-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for UTM Coordinate API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call UTM Coordinate API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for UTM Coordinate API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does UTM Coordinate API cost?
UTM Coordinate API has a free tier with 100 calls / month. Paid plans start at €6.30 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is UTM Coordinate API GDPR-compliant?
All requests to UTM Coordinate API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/utm-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/utm-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/utm-api/SOME_PATH");
curl_setopt($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/utm-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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