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Analog Signal Scaling Calculator
Convert generic process signals like 4-20 mA or 0-10 V into real-world engineering units (e.g. pressure, temperature, flow). Works in both directions.
Engineering Output
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Signal Output (mA/V)
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How it works
This calculator performs standard linear scaling between a generic electrical signal (like 4–20 mA or 0–10 V) and a process value (like 0–100 bar). It works in both directions.
FAQ
Why is 4-20 mA used instead of 0-20 mA?
A 4 mA zero-point allows the system to differentiate between a zero-level signal (4 mA) and a broken wire/dead sensor (0 mA). This is known as a "live zero".
How is linear scaling calculated?
Value = EngMin + ((SignalIn - SigMin) / (SigMax - SigMin)) × (EngMax - EngMin).