21 lines
440 B
Markdown
21 lines
440 B
Markdown
---
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title: Map number to range
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tags: math
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cover: clutter
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firstSeen: 2019-02-23T12:38:16+02:00
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lastUpdated: 2020-10-21T21:54:53+03:00
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---
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Maps a number from one range to another range.
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- Return `num` mapped between `outMin`-`outMax` from `inMin`-`inMax`.
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```js
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const mapNumRange = (num, inMin, inMax, outMin, outMax) =>
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((num - inMin) * (outMax - outMin)) / (inMax - inMin) + outMin;
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```
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```js
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mapNumRange(5, 0, 10, 0, 100); // 50
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```
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