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Liter to US Quart Conversion Calculator (L to qt (US))

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Live Conversion • ISO 80000-3:2019 Certified
1 Liter = 1.05668821 Quart (US)
1 L = 1.056688 qt (US) • 1 qt (US) = 0.946353 L
Liter to Quart (US): One Liter is equal to 1.05668821 Quarts (US).
Certified Authority Value
1.05668821
qt (US)
Exact: 1 qt (US) ≡ 0.946352946 L
L
L
Swap to Quart (US) to Liter
Swap to Quart (US) to Liter
qt (US)
qt (US) 1.05668821
Quick Values:
Conversion Formula
To convert Liter to Quart (US), multiply by 1.05668821
L × 1.05668821 = qt (US)

Calculation: 1 L × 1.05668821 = 1.05668821 qt (US)

Common Liter to Quart (US) Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Liter (L) and Quart (US) (qt (US)).

Tap any row to calculate
Liter to Quart (US): Primary Direct Table (15 Steps)
Liter to Quart (US) Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 L 0.00105669 qt (US) 1.057 × 10⁻³
0.01 L 0.0105669 qt (US) 1.057 × 10⁻²
0.1 L 0.105669 qt (US) 1.057 × 10⁻¹
0.5 L 0.528344 qt (US) 5.283 × 10⁻¹
1 L 1.056688 qt (US) 1.057 × 10⁰
2 L 2.113376 qt (US) 2.113 × 10⁰
5 L 5.283441 qt (US) 5.283 × 10⁰
10 L 10.566882 qt (US) 1.057 × 10¹
20 L 21.133764 qt (US) 2.113 × 10¹
25 L 26.417205 qt (US) 2.642 × 10¹
50 L 52.83441 qt (US) 5.283 × 10¹
100 L 105.668821 qt (US) 1.057 × 10²
250 L 264.172052 qt (US) 2.642 × 10²
500 L 528.344105 qt (US) 5.283 × 10²
1000 L 1056.688209 qt (US) 1.057 × 10³
Quart (US) to Liter: Reciprocal Summary
Quart (US) to Liter Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 qt (US) 0.946353 L 9.464 × 10⁻¹
5 qt (US) 4.731765 L 4.732 × 10⁰
10 qt (US) 9.463529 L 9.464 × 10⁰
50 qt (US) 47.317647 L 4.732 × 10¹
100 qt (US) 94.635295 L 9.464 × 10¹
View Complete 15-Row Quart (US) to Liter 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 Liter (L) and Quart (US) (qt (US)):

Liter References:

  • Standard grocery store whole milk paper carton 1 L
  • Standard glass wine bottle liquid capacity 0.75 L
  • Large family party size carbonated soft drink bottle 2 L
  • Compact commuter passenger car fuel tank capacity 50 L

Quart (US) References:

  • Automotive engine motor oil refill bottle 1 qt (US)
  • Countertop kitchen food blender mixing pitcher 2 qt (US)

Tap any benchmark above to automatically calculate its exact equivalent in Quart (US).

ISQ Dimension: [L³] Coherent SI Unit: cubic meter (m³) Classical Mechanics & Dimensional Metrology

How to Convert Liter to Quart (US)

Converting Liter (L) to Quart (US) (qt (US)) is a core calculation in Volume and Capacity, which measures the three-dimensional space enclosed within a boundary or occupied by a solid, liquid, or gas. This calculation navigates the boundary between the International Metric System (SI) and British Imperial / US Customary engineering standards. In contemporary metrology, Imperial units are defined in terms of exact SI standards via international agreements—notably NIST SP 811 and the 1959 International Yard and Pound Agreement. Exactly 1 Liter equals 1.056688 Quart (US), while 1 qt (US) equals 0.946353 L.

Direct Factor1 L = 1.056688 qt (US)
Inverse Ratio1 qt (US) = 0.946353 L
Conversion ScaleMetric SI to British Imperial / US Customary Bridge
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 (m³)) without arbitrary rounding:

Vtarget=Vsource×(ksource→SIktarget→SI)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 (ksource):1 L = 0.001 cubic meter (m³)
2. Target SI Bridge (ktarget):1 qt (US) = 0.000946353 cubic meter (m³)
Step-by-step substitution for Liter → Quart (US):V(qt (US)) = V(L) × ( 0.001 / 0.000946353 ) = V(L) × 1.056688
Mathematical FormulaValue in Quart (US) = Value in Liter × 1.05668821Direct computational formula applied for standard conversion.
Worked Example

For an engineering input of 250 L, applying the conversion factor yields exactly 264.172052 qt (US). At larger operational scale, 2500 Liter corresponds to 2641.720524 qt (US).

Inverse check: 1 qt (US) = 0.946353 L.

Understanding Liter and Quart (US)

Liter

L
Standard Unit

A Liter (L) is a recognized unit for volume and capacity.

Applications & Practical Context

In practical volume terms, a standard grocery store whole milk paper carton equals 1 L, a standard glass wine bottle liquid capacity equals 0.75 L, a large family party size carbonated soft drink bottle equals 2 L.

Physical Setup

A physical magnitude of 1 L corresponds to 0.001 m³ in standard SI measurement.

Conversion to SI Unit: cubic meter (m³)
1 L = 0.001 m³

Quart (US)

qt (US)
Imperial / US

A Quart (US) (qt (US)) is an imperial and US customary unit for volume and capacity.

Applications & Practical Context

In practical volume terms, a standard municipal water utility billing unit equals 2992.21 qt (US), a average US family household monthly indoor water use equals 23937.66 qt (US), a typical cold winter home natural gas heating consumption equals 29922.08 qt (US).

Physical Setup

A physical magnitude of 1 qt (US) corresponds to 0.000946353 m³ in standard SI measurement.

Conversion to SI Unit: cubic meter (m³)
1 qt (US) = 0.000946353 m³

Domain Metrology & Engineering Applications

Governing Law & Equation

Euclidean 3D Spatial Volume Integration (V = ∭ dx dy dz)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using gravimetric pycnometers, calibrated volumetric glassware, ultrasonic tank level gauges, and laser volume scanners.

Primary Industry Sectors

Applied across bulk liquid logistics, chemical process engineering, pharmaceutical compounding, and beverage manufacturing under international metrology standard ISO 80000-3:2019, NIST SP 811.

Physical Orders of Magnitude & Laboratory Reference Benchmarks

Physical Phenomenon / Engineering ReferenceReference ValueConverted to Quart (US)
Compact kitchen refrigerator interior volume0.25 m³0.264172 qt (US)
Standard domestic soaking bathtub water capacity0.3 m³0.317006 qt (US)
Standard 20-foot ISO ocean shipping container volume33 m³34.870711 qt (US)
Olympic competition swimming pool water capacity2500 m³2641.720524 qt (US)
Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-3:2019, NIST SP 811 and the BIPM SI Brochure (9th Edition). Governed by Euclidean 3D Spatial Volume Integration (V = ∭ dx dy dz) under ISO 80000 dimensional vector [L³].

Multi-Variable Engineering Bridge Material Displacement & Bulk Freight

Volume to Material Mass & Freight Bridge (Kilograms • Grams • Metric Tons • Pounds)

Calculate physical shipping mass and material weight m = ρ × V across industrial liquids and solids, converting input volume to mass via material density (ρ).

m = ρ × V
Vector: [L] × [kg/m³] × 10⁻³ → [kg]
Live Calculated Bridge Equivalent:
1 L at Water (20°C Standard Ambient) = 0.0009982 kg
Equals 1 g • 9.982 × 10⁻⁷ t • 0.002201 lb
SI Mass
0.0009982
kg
Kilograms
Laboratory Metric
1
g
Grams
Industrial Freight
9.982 × 10⁻⁷
t
Metric Tons
US Customary
0.002201
lb
Pounds (Avoirdupois)
Postal & Grocery
0.035
oz
Ounces
US Short Ton
1.1003 × 10⁻⁶
ton (US)
Short Tons (2,000 lb)
  1. 1. Normalize Input to SI Base Unit (L):
    V = 1 L × 0.001 = 0.001 L
  2. 2. Apply Engineering Parameter (ρ):
    Selected condition: Water (20°C Standard Ambient) at ρ = 998.2 kg/m³
  3. 3. Execute Governing Physical Law in SI Units:
    m = ρ × V = (0.001 m³/L) × (998.2 kg/m³) × (0.001 L) = 0.0009982 kg
  4. 4. Convert to Standard Engineering Units:
    • kg: 0.0009982 × 1 = 0.0009982 kg (Kilograms) • g: 0.0009982 × 1000 = 1 g (Grams) • t: 0.0009982 × 0.001 = 9.982 × 10⁻⁷ t (Metric Tons) • lb: 0.0009982 × 2.2046 = 0.002201 lb (Pounds (Avoirdupois)) • oz: 0.0009982 × 35.274 = 0.035 oz (Ounces) • ton (US): 0.0009982 × 0.001102 = 1.1003 × 10⁻⁶ ton (US) (Short Tons (2,000 lb))
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 Standard hydronic water density
Diesel Fuel (EN 590) 832 832.0 kg/m³ Automotive & generator fuel
Gasoline / Petrol (ASTM D4814) 740 740.0 kg/m³ Light motor fuel
Hydraulic Fluid (ISO VG 46) 870 870.0 kg/m³ Industrial machine fluid
Fresh Cured Concrete 2400 2,400 kg/m³ Civil engineering mix
Structural Steel 7850 7,850 kg/m³ Solid carbon steel
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Frequently Asked Questions

There are exactly 1.05668821 quarts (us) (qt (US)) in 1 liter (L). To calculate larger amounts manually, simply multiply your total number of liters by the conversion multiplier of 1.05668821.

The mathematical formula to convert liters to quarts (us) is: [value] * 1.05668821 = quarts (us). 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 quarts (us) back to liters, you must divide your starting value by 1.05668821. Our bidirectional tool automatically computes this inverse equation the moment you type into the quart (us) input field.

1 Liter is larger than 1 Quart (US). Specifically, 1 Liter equals exactly 1.05668821 quarts (us), making it 1.0567 times larger (a difference of 0.02 orders of magnitude). Therefore, quantities expressed in quarts (us) require a larger numerical value to represent the same physical amount.

Under standard international measurement guidelines, 1 Liter converts to 1.05668821 quarts (us). Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.

There are approximately 1.05669 US liquid quarts in 1 liter (1 L = 1.05669 qt (US)). A US quart is defined as a quarter of a US gallon, which equals exactly 0.946352946 liters.

To convert liters (V(L)) to US quarts (V(qt (US))), multiply by 1.05669: V(qt (US)) = V(L) × 1.05669 For example, 2 L × 1.05669 = 2.11338 qt (US).

To convert US quarts (V(qt (US))) to liters (V(L)), multiply the quart volume by 0.946353: V(L) = V(qt (US)) × 0.946353 For example, 4 qt (US) × 0.946353 = 3.785412 L (which is exactly 1 US gallon).

A US liquid quart is standard in automotive lubrication (e.g., motor oil sold in quart bottles). Engine displacement or oil pan capacities often require exact conversion between metric liters and customary quarts where 1 qt = 946.353 mL.

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