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Flow Rate conversion

Liter per Hour to Milliliter per Second

Convert Liter per Hour (LPH) to Milliliter per Second (mL/s) with formula, reference table, and source-backed flow rate guidance on Unitly.

LPHFrom unit
0.277777781 LPH in mL/s
14Units in category
Reverse conversionBrowse Flow Rate

Conversion workbench

Flow Rate

14 unitsOpen dedicated page
Quick values

Live summary

1 LPH = 0.27777778 mL/s

Convert between liter per hour and milliliter per second with a shareable route, copy-ready result, and instant recalculation.

Current units

Liter per HourMilliliter per Second

Need another pair? Change units here or open the dedicated page for this exact route.

Other outputs

1 LPH across flow rate

12 more units

Cubic Meter per Second

2.777778e-7

m³/s

Cubic Meter per Hour

0.001

m³/h

Cubic Meter per Day

0.024

m³/d

Liter per Second

0.0002777778

LPS

Liter per Minute

0.01666667

LPM

Cubic Centimeter per Second

0.27777778

cm³/s

Gallon (US) per Minute

0.0044028675

GPM

Gallon (US) per Second

0.0000733811

gal/s

Gallon (US) per Hour

0.26417205

gal/h

Gallon (UK) per Minute

0.003666153

imp gal/min

Cubic Foot per Minute

0.0005885778

CFM

Cubic Foot per Second

0.0000098096

CFS

Formula

How this conversion works

1 Liter per Hour = 0.27777778 mL/s

Unitly uses category-specific factors and formulas, then surfaces quick values on the same page so the result is easier to audit.

Review methodology
Reference table

Quick values from Liter per Hour to Milliliter per Second

10 examples
Liter per Hour (LPH)Milliliter per Second (mL/s)
0.10.02777778
0.50.13888889
10.27777778
20.55555556
51.388889
102.777778
256.944444
5013.888889
10027.777778
1000277.777778
Real-world use

Why this route is useful

Flow-rate conversions are common in HVAC, plumbing, pumps, filtration, industrial process work, and lab systems.

Convert L/min, CFM, and m³/h when comparing equipment from different regions or industries.

Check pump, fan, and piping specifications without manually rebuilding the unit math.

Translate metric and US customary flow figures for operations, maintenance, and purchasing.

gpm to lpmcfm to m3/hL/min to gal/minflow converter
Trusted references

Standards and guidance behind the numbers

BIPM SI Brochure

Authoritative SI reference published by the Bureau International des Poids et Mesures.

NIST SP 811

NIST guide to SI use, style, and conversion factors.

Use the formula, table, and methodology page together when you want a fast answer and a stronger audit trail.

Complete unit reference

More flow rate routes from this page

14 units in category
FAQ

Common questions about liter per hour to milliliter per second

3 answers

What is 1 Liter per Hour in Milliliter per Second?

1 Liter per Hour equals 0.27777778 mL/s. Unitly shows the live result, formula context, and a reference table on the same page so you can verify the conversion faster.

How do you convert Liter per Hour to Milliliter per Second?

Use the factor or base-unit path shown on this page. For this route, Unitly summarizes it as 1 Liter per Hour = 0.27777778 mL/s.

How does Unitly review flow rate conversions?

Unitly stores category-specific conversion factors and formulas, then checks them against standards and guidance such as BIPM SI Brochure and NIST SP 811. For technical pages we also surface formulas, reference values, and related routes so the number is easier to audit.

Related routes

Keep exploring flow rate conversions.

These routes start from liter per hour and branch into other units in the same category.

Liter per Hour to Cubic Meter per SecondLiter per Hour to Cubic Meter per HourLiter per Hour to Cubic Meter per DayLiter per Hour to Liter per SecondLiter per Hour to Liter per MinuteLiter per Hour to Cubic Centimeter per SecondLiter per Hour to Gallon (US) per MinuteLiter per Hour to Gallon (US) per Second