Enter a gas volume expressed as a standard-volume equivalent (or measured at the chosen standard conditions) and the elapsed time into the calculator to determine the standard volumetric flow rate (SCCM).

SCCM Calculator

Flow from Volume and Time
Leak Rate (Pressure Decay)
Mass Flow from SCCM

Enter any 2 values to calculate the missing variable. For SCCM, the volume must be a standard-volume equivalent (or measured at the chosen standard conditions).

SCCM Formula

The following formula is used to calculate the standard cubic centimeters per minute (SCCM) when the gas volume is expressed at the chosen standard conditions. 

\text{SCCM} = \frac{V_{\text{std}}}{T}
  • Where SCCM is the standard cubic centimeters per minute (standard volumetric flow rate)
  • Vstd is the total gas volume expressed at the chosen standard conditions (cm³)
  • T is the total time (min)

To calculate SCCM, divide the standard-volume equivalent (in cm³) by the elapsed time (in minutes). If the volume is not already referenced to standard conditions, the result is cm³/min (actual) rather than SCCM.

What is SCCM?

Definition:

SCCM, short for standard cubic centimeters per minute, is a unit of measure of gas volumetric flow referenced to a defined set of “standard” conditions (standard temperature and standard pressure). The exact standard conditions can vary by industry; a common reference is 0°C and 1 atm.

How to calculate SCCM?

Example Problem:

The following example outlines how to calculate the standard cubic centimeters per minute.

First, determine the total standard-volume equivalent. In this example, the total standard volume is 50 cm^3 (i.e., 50 standard cm³).

Next, determine the total time of flow. In this case, the total time is 500 minutes.

Finally, calculate the SCCM using the formula above:

SCCM = Vstd / T

SCCM = 50 / 500

SCCM = 0.10 cm^3/min