# Scaling a RAW input value?

**URL:** <https://discourse.nodered.org/t/scaling-a-raw-input-value/73979>\
**Category:** General\
**Created:** [20 January 2023 16:44 UTC](https://discourse.nodered.org/t/scaling-a-raw-input-value/73979 "2023-01-20T16:44:30Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![damica51](https://avatars.discourse-cdn.com/v4/letter/d/eb8c5e/32.png) [@damica51](https://discourse.nodered.org/u/damica51)\
**Post date:** [20 January 2023 16:44 UTC](https://discourse.nodered.org/t/scaling-a-raw-input-value/73979/1 "2023-01-20T16:44:30Z")

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I've looked "High" and "Low" on how to get this done but have not found anything.

Can someone please suggest a place for me to start.

This is what I want to get done.

I am reading an Analog Input (4-20ma) sensor my RAW value will be in the range of 819.0 - 4095.0  
(12 bit resolution)

I want to be scaled to INCHES (277.2)  
So 4095.0 would equal 277.2 inches  
819.0 would equal 0.0 inches

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [20 January 2023 16:46 UTC](https://discourse.nodered.org/t/scaling-a-raw-input-value/73979/2 "2023-01-20T16:46:56Z")

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use the built in range node ?

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**Author:** ![damica51](https://avatars.discourse-cdn.com/v4/letter/d/eb8c5e/32.png) [@damica51](https://discourse.nodered.org/u/damica51)\
**Post date:** [20 January 2023 17:01 UTC](https://discourse.nodered.org/t/scaling-a-raw-input-value/73979/3 "2023-01-20T17:01:28Z")

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Thanks, that will work.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [3 February 2023 17:01 UTC](https://discourse.nodered.org/t/scaling-a-raw-input-value/73979/4 "2023-02-03T17:01:35Z")

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