Quarts to Pounds Calculator
Convert quarts to pounds for any substance. Select water, milk, oil, honey, flour or sugar — or enter a custom density — and get the weight in pounds, kilograms, grams and ounces instantly.
qt
Substance
Weight of the entered quarts at density 0.998 g/ml
- 1
Volume in milliliters
1 × 946.353 = 946.351 US quart = 946.352946 mL (exact by definition). - 2
Mass in grams
946.35 × 0.998 = 944.46 - 3
Weight in pounds
944.46 ÷ 453.592 = 2.08221 lb = 453.59237 g (exact). Density at ~20 °C.
How does this calculator work?
Weight (lb) = quarts × 946.353 ml/qt × density (g/ml) ÷ 453.592 g/lb. 1 quart of water ≈ 2.09 lb; milk ≈ 2.15 lb; oil ≈ 1.92 lb; honey ≈ 2.96 lb; flour ≈ 1.24 lb; sugar ≈ 1.76 lb. Density values are approximate at 20 °C and vary with temperature and packing.
Formula
How this is calculated
Quarts measure volume; pounds measure mass. To convert between them you need density — the mass per unit volume of the substance, in grams per millilitre (g/ml). The conversion chain is: volume_ml = quarts × 946.352946, then mass_g = volume_ml × density, then mass_lb = mass_g ÷ 453.59237. Both the mL-per-quart and grams-per-pound values are exact by legal definition.
Density values in this calculator are approximate at about 20 °C (room temperature). Water is 0.998 g/ml at 20 °C (or 1.000 g/ml at 4 °C, often used as the round-number standard). Whole milk is about 1.030 g/ml; vegetable oil around 0.920 g/ml; honey 1.40–1.42 g/ml depending on water content; all-purpose flour approximately 0.593 g/ml (loosely scooped — packed flour can be 0.65+ g/ml); granulated sugar about 0.845 g/ml; regular gasoline 0.72–0.75 g/ml. For substances not listed, use the Custom density option and enter the g/ml value from a reference source.
Results compare the entered substance against water at the same volume so you can see immediately how much heavier or lighter it is. For dry ingredients (flour, sugar) the density varies significantly with packing — weigh them for baking precision rather than relying on volume.
Frequently asked questions
One US quart of water weighs approximately 2.086 pounds (at 20 °C). At the commonly used "water = 1 g/ml" approximation it would be about 2.087 lbs. The exact value depends on temperature: water is densest at 4 °C (1.000 g/ml) and slightly less dense at room temperature (0.998 g/ml).
Because volume and mass are different physical quantities and the conversion factor depends on the substance's density. One quart of honey weighs about 3.0 lbs while one quart of oil weighs about 1.9 lbs — the same volume, very different masses. Only water has the convenient property of ≈ 1 g/ml (= ≈ 2.09 lb/qt).
All-purpose flour density varies considerably with packing. Lightly spooned and levelled: ~0.53–0.58 g/ml. Scooped with a cup: ~0.59–0.64 g/ml. Sifted: ~0.45 g/ml. The calculator uses 0.593 g/ml as a typical scooped value. For baking, it is always more accurate to weigh flour in grams than to measure by volume.
Also known as
TG we-Calculate Editorial Team. (2026). Quarts to Pounds Calculator [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/quarts-to-pounds-calculator
TG we-Calculate Editorial Team. "Quarts to Pounds Calculator." TG we-Calculate. 2026. https://we-calculate.com/calculator/quarts-to-pounds-calculator.
TG we-Calculate Editorial Team, "Quarts to Pounds Calculator," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/quarts-to-pounds-calculator
@misc{wecalculate_quarts_to_pounds_calculator, title = {Quarts to Pounds Calculator}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/quarts-to-pounds-calculator}}, year = {2026}, note = {TG we-Calculate} }
Did this calculator help you?