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# utm
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Bidirectional UTM-WGS84 converter for JavaScript.
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[](https://www.npmjs.org/package/utm)
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[](https://travis-ci.org/TimothyGu/utm)
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Translated directly from [Tobias Bieniek's implementation in Python](https://github.com/Turbo87/utm).
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## Usage
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```js
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var utm = require('utm')
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```
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### `utm.toLatLon(easting, northing, zoneNum, zoneLetter, northern, strict = true)`
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Convert from UTM-WGS84 to latitude/longitude coordinates. One and only one of
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`zoneLetter` and `northern` must be specified. `strict` option specifies
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whether easting and northing are checked against their respective ranges.
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Returns `{ latitude, longitude }`.
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### `utm.fromLatLon(latitude, longitude[, zoneNum])`
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Convert from latitude/longitude coordinates to UTM-WGS84. `zoneNum` can be set
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to force a specific zone number.
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Returns `{ easting, northing, zoneNum, zoneLetter }`.
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