This tool calculates the Rise Time of a simple **RC** low pass filter network.

Enter

- Resistance
**R**(units: milliOhm/Ohm/kilOhm/megOhm) - Capacitance
**C**(units: Farad/milliFarad/microFarad/nanoFarad)

**Formula**

**t _{r} = 2.197*RC**

Rise time in this formula represents the time it takes to get from 10% to 90%.

**Example Calculation**

An RC low pass filter with **R = 1 ohm** and **C = 1 microfarad** has a rise time of **2.2 microseconds**.

**Related Calculators**

**References**

[1] Rise Time of a Single Stage Low Pass RC Network on Wikipedia