Tidal volume is the amount of air or gas that a patient breathes in with each breathe.

Tidal volume plays a significant role during mechanical ventilation to ensure adequate ventilation without causing trauma to the lungs.

**Formula to calculate tidal volume.**

The inspiratory time is the time taken for inhalation.

**Example:**

Suppose the flow rate is 500ml per second, calculate the tidal volume if the inspiratory time 1 second.

Therefore, your tidal volume is 500ml.