Cubic meters per hour to Liters per minute Calculator

Direct answer

Multiply the entered cubic meters per hour value by 16.6666666667 to express it in liters per minute (L/min). This converts cubic meter per hour (m³/h) to liter per minute (L/min) within the documented flow rate family.

Variables and formula

• Cubic meters per hour (m³/h): the source value measured in cubic meter per hour.
• Liters per minute (L/min): the same quantity expressed in liter per minute.
• Conversion factor: 16.6666666667 liters per minute per cubic meter per hour.

Liters per minute = Cubic meters per hour × 16.6666666667

The generator emits numeric factors with at most 15 significant digits. Calculator results keep up to 10 significant digits for display; this formatting does not increase the precision of the measurement.

Unit definitions and named variants

Source unit: cubic meter per hour (m³/h). One cubic metre is exactly 1000 litres and one hour is exactly 60 minutes, so 1 m³/h = 1000/60 L/min. Named variant used: Volumetric flow; no standard-condition normalization. Reference: Bureau International des Poids et Mesures: The International System of Units (SI), 9th edition, version 4.01.

Target unit: liter per minute (L/min). A litre per minute is a volumetric flow of one litre during one minute. Named variant used: Volumetric flow; no standard-condition normalization. Reference: Bureau International des Poids et Mesures: The International System of Units (SI), 9th edition, version 4.01.

The m³/h-to-L/min direction remains inside the flow rate quantity; it changes the unit label and numerical scale, not the kind of quantity being measured.

Relationship and precision

This route uses at least one deliberately preserved rounded factor. Treat the displayed factor as an approximation at the precision documented below.

• m³/h relationship: The preserved base factor is a rounded decimal representation of the exact ratio 50/3 L/min.
• L/min relationship: The base factor is exactly 1 by the family base-unit choice.

To audit the factor through the family base unit, divide the raw dataset factors 16.6666666667 by 1. The generator emits that quotient once at 15 significant digits as the canonical direct factor 16.6666666667; runtime calculations do not divide the already-emitted base factors again.

Reproducible example

For 10 cubic meters per hour, 10 × 16.6666666667 = 166.666666667 liters per minute. Repeating the same multiplication with the stated factor reproduces the displayed conversion before interface rounding.

Directional scale check

Because one cubic meter per hour contains 16.6666666667 liters per minute, the target number is larger than the source number for every positive input. Zero maps to zero, while negative inputs are rejected because this family models non-negative magnitudes.

Interpretation

Read the result as liters per minute, not cubic meters per hour. A value entered as m³/h leaves the calculator labelled L/min; this directional distinction matters even when the two units describe the same flow rate quantity.

Assumptions and limitations

• Only non-negative flow magnitudes are accepted; direction is outside this family.
• US gallon per minute means the U.S. liquid gallon of exactly 231 cubic inches, not the Imperial gallon.
• Cubic foot per minute uses the international foot, not a legacy survey-foot volume.

Common mistakes

• The cubic exponent applies to metre, not hour.
• Use uppercase L to avoid confusion with the numeral 1.

Continue within the Flow Rate family

See the Flow Rate conversion hub for its five-unit reference table and all 20 directed routes.

• Reverse the direction: Liters per minute to Cubic meters per hour
• Compare another flow rate route: Cubic meters per hour to Liters per second
• Compare another flow rate route: Cubic meters per hour to US gallons per minute
• Compare another flow rate route: Cubic meters per hour to Cubic feet per minute
• Compare another flow rate route: Liters per minute to Liters per second

Assumptions

• The entered value uses cubic meters per hour exactly as labelled.
• Only non-negative flow magnitudes are accepted; direction is outside this family.
• Rounding and measurement uncertainty remain the user's responsibility.

Sources and methodology

CalcMotive publishes the formula and assumptions so you can decide whether the estimate fits your use case. See our methodology standards.

• The International System of Units (SI), 9th edition, version 4.01; Bureau International des Poids et Mesures; accessed Aug 7, 2026