Unloaded Voltage Divider
SCIENCE & ENGINEERING
Unloaded Voltage Divider
Calculate an ideal divider output with no connected load.
UNDERSTAND YOUR RESULT
How it works
Calculate an ideal divider output with no connected load.
THE CALCULATIONVout across R2 = Vin × R2/(R1+R2)
Using this calculator
Enter input voltage (v), top resistor r1 (ω), bottom resistor r2 (ω). Vout across R2 = Vin × R2/(R1+R2).
What to keep in mind
An idealized educational model in the displayed SI units. Real systems may include losses and conditions not represented here. This is not a safety or engineering certification.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.