ConvBolt — Unit ConverterMilliliters to US quarts Converter
Converting milliliters to US quarts is a multiplication by a fixed factor: 1 ml = 0.001056688 qt. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one milliliter works out to 0.001056688 qt, the us quart is the far smaller unit of the two: a figure given in us quart always carries a smaller number than the same measurement in milliliter. A chart drawn in ml can hide that, so check which label the axis uses before you compare two readings.
When a container size is certified in US quarts but you are dosing in milliliters, it pays to convert from the certified figure rather than from a rounded label.
The conversion factor used here is 0.001056688 qt per milliliter (9 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 ml a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 946.3529 ml per qt, the exact reciprocal, so a round trip through both pages returns your original number.
Milliliters to US quarts formula
Use this formula to convert any milliliter value to US quarts:
Worked example: 100 ml × 0.001056688 = 0.1056688 qt.
Milliliters to US quarts conversion table
| Milliliters (ml) | US quarts (qt) |
|---|---|
| 0.5 ml | 0.0005283441 qt |
| 1 ml | 0.001056688 qt |
| 2 ml | 0.002113376 qt |
| 5 ml | 0.005283441 qt |
| 10 ml | 0.01056688 qt |
| 20 ml | 0.02113376 qt |
| 50 ml | 0.05283441 qt |
| 100 ml | 0.1056688 qt |
| 500 ml | 0.5283441 qt |
| 1000 ml | 1.056688 qt |
How to convert milliliters to US quarts
Multiply the milliliter value by 0.001056688 to get the equivalent in US quarts. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the US quarts to Milliliters converter instead of dividing by hand; both pages use the same source factors. For every other ml conversion in one place, see the ml conversion hub.
Frequently asked questions
How many US quarts are in 1 milliliter?
1 milliliter = 0.001056688 qt.
What is 100 milliliters in US quarts?
100 ml = 0.1056688 qt.
Is converting milliliters to US quarts the same as US quarts to milliliters?
No — the direction changes the multiplier. The reverse conversion (1 qt = 946.3529 ml) is on the US quarts to Milliliters page.
Related conversions
Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.