Background

Flow rate = volume/time. L/s and m³/hr (metric), GPM (US), CFM (HVAC air flow).

Plumbing and Water Supply

Residential: 0.3–0.5 L/s per fixture. Shower: 0.15–0.2 L/s (9–12 L/min).

HVAC Air Flow

Residential AC: 400–800 CFM. 1 CFM = 0.4719 L/s.

How to Use This Calculator

1. Select 'Flow Rate'

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2. Select your source unit

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3. Enter the value

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4. Select your target unit

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Applications

Plumbing Design

Domestic water main: 0.5–1.0 L/s (8–16 GPM). Convert for US equipment.

Irrigation

Agricultural sprinkler: 0.5–2.0 L/s. Convert for US irrigation equipment.

Process Engineering

Chemical plants specify in m³/hr or L/s. Convert for equipment selection.

Frequently Asked Questions