Voltage Divider
Calculate Voltage Divider instantly with the exact formula and a worked example.
Voltage Divider
V inV
R1Ω
R2Ω
V out
8V
More about: Voltage Divider
What it calculates
The “Voltage Divider” calculator computes V out in V from 3 parameters: v in (V), r1 (Ω), r2 (Ω).
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters V in = 12 V, R1 = 1,000 Ω, R2 = 2,000 Ω the result is 8 V (Vout = Vin · R2/(R1+R2)).
How to use
- Enter v in, r1 and r2 — each field above is adjustable with a slider.
- V out (V) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Voltage Divider calculated?
The Voltage Divider calculator computes V out (in V) from v in, r1, r2. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Voltage Divider calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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