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RC Cutoff Frequency Calculator — result sheet
Calculate the ideal first-order RC low-pass cutoff frequency from resistance and capacitance.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: fc = 1/(2πRC), after converting capacitance from microfarads to farads.
The cutoff is the −3 dB frequency for an ideal first-order RC low-pass response.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Resistance — Ω; minimum 1.0E-6; maximum 1000000000
- Capacitance — µF; minimum 1.0E-6; maximum 1000000000
Worked example
| Input | Value |
|---|---|
| Resistance | 1000 |
| Capacitance | 1 |
Cutoff frequency ≈ 159.155 Hz.
Assumptions and limits
- Resistance is in ohms and capacitance is in microfarads.
- The circuit is a single ideal first-order RC network.
- Source impedance, load, parasitics, tolerance, phase, and filter-order effects are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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