Cubic Meters/hour to Cubic Meters/second Converter (m³/h to m³/s)

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Live Conversion • ISO 80000-4:2019 Certified

1 Cubic meter/hour = 0.00027777778 Cubic meter/second

1 m³/h = 0.000277778 m³/s • 1 m³/s = 3,600 m³/h

Decimals:

Certified Authority Value

0.00027778

m³/s

From / Input

m³/h

Swap to Cubic meter/second to Cubic meter/hour

To / Result

m³/s

Quick Values:

Conversion Formula

To convert Cubic meter/hour to Cubic meter/second, multiply by 0.00027777778

m³/h × 0.00027777778 = m³/s

Calculation: 1 m³/h × 0.00027777778 = 0.00027777778 m³/s

Common Cubic meter/hour to Cubic meter/second Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Cubic meter/hour (m³/h) and Cubic meter/second (m³/s).

Tap any row to calculate

Cubic meter/hour to Cubic meter/second: Primary Direct Table (15 Steps)

Rule: 1 Cubic meter/hour is equal to 0.000277778 m³/s (Cubic meter/second)

Cubic meter/hour to Cubic meter/second Conversion Reference Table
Conversion & Equivalent Value	Scientific Notation
0.001 m³/h 2.777778 × 10⁻⁷ m³/s	2.778 × 10⁻⁷
0.01 m³/h 2.777778 × 10⁻⁶ m³/s	2.778 × 10⁻⁶
0.1 m³/h 2.777778 × 10⁻⁵ m³/s	2.778 × 10⁻⁵
0.5 m³/h 0.000138889 m³/s	1.389 × 10⁻⁴
1 m³/h 0.000277778 m³/s	2.778 × 10⁻⁴
2 m³/h 0.000555556 m³/s	5.556 × 10⁻⁴
5 m³/h 0.00138889 m³/s	1.389 × 10⁻³
10 m³/h 0.00277778 m³/s	2.778 × 10⁻³
20 m³/h 0.00555556 m³/s	5.556 × 10⁻³
25 m³/h 0.00694444 m³/s	6.944 × 10⁻³
50 m³/h 0.0138889 m³/s	1.389 × 10⁻²
100 m³/h 0.0277778 m³/s	2.778 × 10⁻²
250 m³/h 0.0694444 m³/s	6.944 × 10⁻²
500 m³/h 0.138889 m³/s	1.389 × 10⁻¹
1000 m³/h 0.277778 m³/s	2.778 × 10⁻¹

Cubic meter/second to Cubic meter/hour: Reciprocal Summary

Rule: 1 Cubic meter/second is equal to 3,600 m³/h (Cubic meter/hour)

Cubic meter/second to Cubic meter/hour Conversion Reference Table
Reciprocal & Equivalent Value	Scientific Notation
1 m³/s 3600 m³/h	3.6 × 10³
5 m³/s 18000 m³/h	1.8 × 10⁴
10 m³/s 36000 m³/h	3.6 × 10⁴
50 m³/s 180000 m³/h	1.8 × 10⁵
100 m³/s 360000 m³/h	3.6 × 10⁵

View Complete 15-Row Cubic meter/second to Cubic meter/hour Table

Real-World Context & Everyday Benchmarks

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To help contextualize these units in everyday life, science, and engineering, here are verified real-world reference points for Cubic meter/hour (m³/h) and Cubic meter/second (m³/s):

Cubic meter/hour References:

Municipal street fire hydrant flow test inspection discharge capacity 200 m³/h
Residential swimming pool diatomaceous earth filtration pump circulation 15 m³/h

Cubic meter/second References:

Niagara Falls combined average tourist daytime river discharge flow rate 2400 m³/s
Amazon River mouth discharge into Atlantic Ocean (world largest river) 209000 m³/s
Municipal regional wastewater treatment plant peak sewage inflow rate 1 m³/s

Tap any benchmark above to automatically calculate its exact equivalent in Cubic meter/second.

ISQ Dimension: [L³ T⁻¹] Coherent SI Unit: cubic meter per second (m³/s) Fluid Dynamics & Rheology

How to Convert Cubic meter/hour to Cubic meter/second

Converting Cubic meter/hour (m³/h) to Cubic meter/second (m³/s) is a core calculation in Volumetric Flow Rate, which quantifies the volume of fluid passing through a designated conduit cross-section per unit of time. Because Cubic meter/second is a broader physical scale than Cubic meter/hour, converting from m³/h to m³/s condenses the numerical figure. It takes 3600 Cubic meter/hour to equal a single Cubic meter/second (1 m³/h = 0.000277778 m³/s). To convert any quantity, multiply by 0.000277778 (or divide by 3600).

Direct Factor1 m³/h = 0.000277778 m³/s

Inverse Ratio1 m³/s = 3600 m³/h

Conversion ScaleDirect Proportional Magnitude Compression

First-Principles SI Derivation ProofNIST SP 811 / ISO 80000 Compliance

Mathematical Conversion Derivation via Coherent SI Base Unit

Under the International System of Quantities (ISQ), dimensional conversion between non-SI units is rigorously resolved by bridging through the coherent SI base unit (cubic meter per second (m³/s)) without arbitrary rounding:

V_{\text{target}} = V_{\text{source}} \times \left( \frac{k_{\text{source} \to \text{SI}}}{k_{\text{target} \to \text{SI}}} \right)

Universal Dimensional Conversion Law (ISO 80000 / NIST SP 811)

1. Source SI Bridge (k_source):1 m³/h = 0.000277778 cubic meter per second (m³/s)

2. Target SI Bridge (k_target):1 m³/s = 1 cubic meter per second (m³/s)

Step-by-step substitution for Cubic meter/hour → Cubic meter/second:V(m³/s) = V(m³/h) × ( 0.000277778 / 1 ) = V(m³/h) × 0.000277778

Mathematical FormulaValue in Cubic meter/second = Value in Cubic meter/hour × 0.00027777778Direct computational formula applied for standard conversion.

Worked Example

For an engineering input of 75 m³/h, applying the conversion factor yields exactly 0.0208333 m³/s. At larger operational scale, 100 Cubic meter/hour corresponds to 0.0277778 m³/s.

Inverse check: 1 m³/s = 3600 m³/h.

Understanding Cubic meter/hour and Cubic meter/second

Domain Metrology & Engineering Applications

Governing Law & Equation

Hydrodynamic Continuity Equation (Q = A · v̄)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using electromagnetic inductive flowmeters, ultrasonic transit-time meters, turbine flowmeters, and differential orifice plates.

Primary Industry Sectors

Applied across municipal water supply distribution, chemical process loops, oil & gas pipeline custody transfer, and HVAC hydronic balancing under international metrology standard ISO 80000-4:2019, ASME MFC-3M.

Physical Orders of Magnitude & Laboratory Reference Benchmarks

Physical Phenomenon / Engineering Reference	Reference Value	Converted to Cubic meter/second
Municipal street fire hydrant flow test inspection discharge capacity	`200 m³/h`	`0.0555556 m³/s`
Residential swimming pool diatomaceous earth filtration pump circulation	`15 m³/h`	`0.00416667 m³/s`

Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-4:2019, ASME MFC-3M and the BIPM SI Brochure (9th Edition). Governed by Hydrodynamic Continuity Equation (Q = A · v̄) under ISO 80000 dimensional vector [L³ T⁻¹].

Multi-Variable Engineering Bridge Fluid Continuity & Mass Flux

Volumetric to Mass Flow Continuity Bridge (kg/s • kg/h • lb/s • lb/h • t/h • g/s)

Convert volumetric flow rate (Q) directly into physical mass flow rate (ṁ) across process fluids using the continuity relation ṁ = ρ × Q, bridging volume flow [L³ T⁻¹] and mass flow [M T⁻¹] via density (ρ).

Input Volumetric Flow Rate (Q): m³/h

Select Fluid Density: 998.2 kg/m³

Governing Law: ṁ = ρ × Q

Vector: [m³/s] × [kg/m³] → [kg/s]

Live Calculated Bridge Equivalent:

1 m³/h at Water (20°C / Standard Ambient) = 0.2773 kg/s

Equals 998.2 kg/h • 0.6113 lb/s • 2200.65 lb/h

SI Mass Flow

0.2773

kg/s

Kilograms per Second

Industrial Process

998.2

kg/h

Kilograms per Hour

US Mass Flow

0.6113

lb/s

Pounds per Second

Boiler / Turbine Rating

2200.65

lb/h

Pounds per Hour

Heavy Plant Header

0.9982

t/h

Metric Tons per Hour

Chemical / Laboratory

277.2778

g/s

Grams per Second

Step-by-Step Numerical Derivation Proof View Derivation

1. Normalize Input to SI Base Unit (m³/s):
Q = 1 m³/h × 0.00027778 = 0.00027778 m³/s
2. Apply Engineering Parameter (ρ):
Selected condition: Water (20°C / Standard Ambient) at ρ = 998.2 kg/m³
3. Execute Governing Physical Law in SI Units:
ṁ = ρ × Q = (0.00027778 m³/s) × (998.2 kg/m³) = 0.277278 kg/s
4. Convert to Standard Engineering Units:
• kg/s: 0.277278 × 1 = 0.2773 kg/s (Kilograms per Second) • kg/h: 0.277278 × 3600 = 998.2 kg/h (Kilograms per Hour) • lb/s: 0.277278 × 2.2046 = 0.6113 lb/s (Pounds per Second) • lb/h: 0.277278 × 7936.6414 = 2200.65 lb/h (Pounds per Hour) • t/h: 0.277278 × 3.6 = 0.9982 t/h (Metric Tons per Hour) • g/s: 0.277278 × 1000 = 277.2778 g/s (Grams per Second)

Explore Full Density Converter →

Engineering Substance / Operating Standard	Parameter Value (kg/m³)	Reference State / Condition	Typical Industrial & Engineering Application
Water (20°C / Standard Ambient)	`998.2`	998.2 kg/m³	HVAC hydronic & cooling water
Diesel Fuel (EN 590 / 20°C)	`832`	832.0 kg/m³	Generator & marine diesel consumption
Gasoline / Petrol (15°C)	`740`	740.0 kg/m³	Automotive fuel injection lines
Hydraulic Fluid (ISO VG 46)	`870`	870.0 kg/m³	Hydraulic power pack pumps
Air (Standard Ambient / NTP 20°C)	`1.204`	1.204 kg/m³	HVAC ductwork & compressor air

Frequently Asked Questions

There are exactly 0.00027777778 cubic meters/second (m³/s) in 1 cubic meter/hour (m³/h). To calculate larger amounts manually, simply multiply your total number of cubic meters/hour by the conversion multiplier of 0.00027777778.

The mathematical formula to convert cubic meters/hour to cubic meters/second is: [value] * 0.00027777778 = cubic meters/second. Rather than doing the math manually, you can use our high-precision online calculator to process this exact equation instantly without rounding errors.

To perform the reverse calculation from cubic meters/second back to cubic meters/hour, you must divide your starting value by 0.00027777778. Our bidirectional tool automatically computes this inverse equation the moment you type into the cubic meter/second input field.

1 Cubic meter/second is larger than 1 Cubic meter/hour. Specifically, 1 Cubic meter/hour equals 0.00027777778 cubic meters/second, meaning 1 Cubic meter/second is 3600 times larger than 1 Cubic meter/hour (a difference of 3.56 orders of magnitude). Expressing measurements in cubic meters/hour requires a larger numerical value to represent the equivalent physical magnitude.

A typical municipal street fire hydrant flow test inspection discharge capacity measures 200 m³/h, which corresponds to 0.05556 Cubic Meter Per Second (Cubic meter/second).