1. What Is CFH To LPM Conversion?

CFH (cubic feet per hour) to LPM (liters per minute) conversion is used to convert flow rate measurements between imperial and metric units. This conversion is commonly needed in engineering, HVAC, and fluid dynamics applications.

2. How Does The Calculator Work?

The calculator uses the conversion formula:

Where:

• \( CFH \) — Flow rate in cubic feet per hour
• \( LPM \) — Flow rate in liters per minute
• \( 0.4719 \) — Conversion factor (exact value: 28.3168/60)

Explanation: One cubic foot equals 28.3168 liters, and one hour equals 60 minutes, so the conversion factor is derived from 28.3168 ÷ 60 = 0.4719.

3. Importance Of Flow Rate Conversion

Details: Accurate flow rate conversion is essential for international engineering projects, equipment specification, and system design where different measurement systems are used.

4. Using The Calculator

Tips: Enter the CFH value in cubic feet per hour. The value must be a positive number. The calculator will automatically compute the equivalent value in liters per minute.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 0.4719?
A: This factor comes from the relationship between cubic feet and liters (1 ft³ = 28.3168 L) divided by minutes in an hour (60 minutes).

Q2: How accurate is this conversion?
A: The conversion is mathematically exact based on the defined relationship between cubic feet and liters.

Q3: Can I convert LPM back to CFH?
A: Yes, use the inverse formula: CFH = LPM ÷ 0.4719 or CFH = LPM × 2.1189.

Q4: Where is this conversion commonly used?
A: This conversion is frequently used in HVAC systems, compressed air flow measurements, and industrial gas flow applications.

Q5: Are there any limitations to this conversion?
A: The conversion is purely mathematical and doesn't account for temperature, pressure, or fluid properties which may affect actual flow measurements.