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Liters per Second to m³/h Converter

Enter the flow rate in liters per second below to convert it to m³/h.

Convert Liters per Second to m³/h

Enter a value in liters per second (L/s) to convert to m³/h (m³/h).

Result
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18m³/h
5 L/s = 18 m³/h
Result updates automatically
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Suggested Conversions
Reference:NIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))
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Liters per Second to Cubic Meters per Hour Conversion Table

Table showing various liters per second measurements converted to m³/h. Click any preset value or arrow to load it into the converter.

Liters per Second (L/s)m³/h (m³/h)
1 L/s3.6 m³/h
2 L/s7.2 m³/h
2.5 L/s9 m³/h
5 L/s18 m³/h
10 L/s36 m³/h
15 L/s54 m³/h
20 L/s72 m³/h
25 L/s90 m³/h
30 L/s108 m³/h
50 L/s180 m³/h

How to Convert Liters per Second to m³/h

To convert liters per second to m³/h, multiply the flow rate by the following conversion ratio: 3.6 m³/h/liters per second.

Since one liters per second is equal to 3.6 m³/h, you can use this simple formula to convert:

m³/h = liters per second × 3.6

The flow rate in m³/h is equal to the flow rate in liters per second multiplied by 3.6.

For example, here's how to convert 5 liters per second to m³/h using the formula above.

m³/h = (5 L/s × 3.6) = 18 m³/h

How Many m³/h Are in a Liters per Second?

There are 3.6 m³/h in a liters per second, which is why we use this value in the formula above.

1 L/s = 3.6 m³/h|1 m³/h = 0.2777778 L/s

Our liters per second to cubic meters per hour calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Liters per Second and m³/h are both units used to measure flow rate. Keep reading to learn more about each unit.

What Is a Liters per Second?

A liters per second is a unit of flow rate equal to 60 liters per minute (L/min), the base unit for flow rate. Equal to 60 L/min. [1]

The liters per second is classified as a metric and SI-compatible unit of flow rate. Liters per Second can be abbreviated as L/s; for example, 1 liters per second can be written as 1 L/s.

When working with liters per second (L/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, liters per second (L/s) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.

What Is a Cubic Meters per Hour?

A cubic meters per hour is a unit of flow rate equal to 16.6666667 liters per minute (L/min), the base unit for flow rate. Equal to 16.6667 L/min. [2]

The cubic meters per hour is classified as a metric and SI-compatible unit of flow rate. m³/h can be abbreviated as m³/h; for example, 1 cubic meters per hour can be written as 1 m³/h.

When working with m³/h (m³/h) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, m³/h (m³/h) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.

When converting flow rate between liters per second (L/s) and m³/h (m³/h), keep full floating-point precision (1 L/s = 3.6 m³/h; 1 m³/h = 0.2777778 L/s) during intermediate calculations and round only the final cubic meters per hour figure to match your instrument tolerance.

More Liters per Second & Cubic Meters per Hour Conversions

Need to calculate in the opposite direction? Use our m³/h to liters per second calculator to switch your starting unit immediately. You can also explore related tools such as converting m³/h to liters per second, converting cfm to m³/h, or converting gpm (us) to m³/h.

Frequently Asked Questions

There are 3.6 m³/h (m³/h) in 1 liters per second (L/s). Conversely, 1 cubic meters per hour (m³/h) is equal to 0.27778 liters per second (L/s).

References

NIST · BIPM · ISO
  1. [1]
    NIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))·Flow Rate Metrology Standard — Liters per Second (L/s) to m³/h (m³/h)
    NIST SP 811 Standard
  2. [2]
    NIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Liters per Second (L/s) & Cubic Meters per Hour (m³/h)
    NIST OWM Specification
  3. [3]
    BIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (L/s to m³/h)
    BIPM Reference
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