Calculator
What the Quart Converter does
Quart Converter: 1 qt = 0.94635295 L, so multiply a quart (US) value by 0.94635295 to get litre, or divide to go back. Example: 1 qt = 0.94635295 L.
Enter Value, From and To and the Quart Converter reports Result, How it was calculated and Reverse conversion. Edit a field and the answer updates in place.
Typical users are anyone working across two measurement systems. Having the exact factor matters more than a rough mental estimate.
There is no back end here. The calculation runs where you are sitting, not on a server somewhere.
The meaning of each field, the formula in use, and a worked example that starts from the default inputs are all further down.
What do the Quart Converter fields mean?
The Quart Converter uses 3 inputs. You can work from the defaults, or clear them and start fresh, both work.
| Field | What to enter | Default |
|---|---|---|
| Value | required | 1 |
| From | choose from Millilitre (mL), Centilitre (cL), Litre (L), Cubic metre (m³), Cubic centimetre (cm³) or Cubic inch (in³) | Quart (US) (qt) |
| To | choose from Millilitre (mL), Centilitre (cL), Litre (L), Cubic metre (m³), Cubic centimetre (cm³) or Cubic inch (in³) | Litre (L) |
How does the Quart Converter work?
Both units are converted through volume's base unit (L), so any of the 19 units in the dropdowns can be paired in either direction without loss of accuracy.
Definitions are taken from the SI system where one exists, and from CODATA or the IAU where a unit is established by measurement. No factor is rounded before the calculation.
Worked example
These are the values the Quart Converter loads by default, and the result it produces from them. Here is the calculation as it stands the moment the page loads.
| Value | 1 |
|---|---|
| From | Quart (US) (qt) |
| To | Litre (L) |
| Result | 0.94635295 L |
|---|---|
| How it was calculated | 1 qt = 0.94635295 L, so 1 × 0.94635295 = 0.94635295 L |
| Reverse conversion | 1.056688209 qt (if you meant 1 L) |
Quarts and litres
A US quart equals exactly 946.352946 millilitres (a quarter of a US gallon), and like the gallon it derives from, the imperial quart is a different, larger unit (about 1.136523 L, again roughly 20% bigger).
Worth knowing
- US cooking and dairy packaging (milk, cream, ice cream) commonly uses quarts, while equivalent products in metric countries are sold in litre or half-litre containers: this conversion bridges recipe quantities between the two.
- Motor oil in the US is sold and specified by the quart (most car engines take roughly 4 to 6 quarts), while elsewhere it’s specified in litres. A maintenance manual written for one market needs this conversion to be useful in the other.
- As with the gallon, always confirm whether a "quart" figure is US or imperial before converting. The roughly 20% gap is large enough to matter for anything measured precisely.
Definitions: BIPM SI Brochure · NIST reference on units
How to use it
- Enter Value.
- Pick a value for From: the options are Millilitre (mL), Centilitre (cL), Litre (L), Cubic metre (m³), Cubic centimetre (cm³) or Cubic inch (in³).
- Pick a value for To: the options are Millilitre (mL), Centilitre (cL), Litre (L), Cubic metre (m³), Cubic centimetre (cm³) or Cubic inch (in³).
- Each keystroke triggers a fresh calculation, which is cheap because it happens locally.
- You get Result, How it was calculated and Reverse conversion back.
- Copy Link is the quickest way to send the exact scenario to someone else.
What this tool does not do
- Repeated conversions compound rounding, so convert once from the original value where possible.
- Factors use the internationally agreed definitions; some industries round them differently.
- It does not account for anything you did not enter, by definition.
- It validates ranges, not intent. A value can be accepted and still be the wrong one to use.
Frequently asked questions
3 things: Value, From and To. Nothing starts empty, meaning you can explore the calculation before committing to real figures.
With the values loaded when the page opens, result comes out as 0.94635295 L. Any edit re-runs the calculation, so there is no stale number on screen.
No. There is no account, no session and no storage. The values exist only while the tab is open.
Nothing at all. There is no registration, no paywall and no per-use quota.
It implements the published definition directly, without shortcuts or approximations.