Terms of use

HowManyOunces is a free reference. You may use the converters, charts and text for personal and professional purposes. Please link to the page instead of copying its content to another website.

We work hard to keep every number exact, and every conversion is calculated from official unit definitions. Still, the site is provided "as is", without any warranty, and mistakes can happen.

Do not rely on this site where an error could cause harm. This includes measuring medicine, dosing infants, pharmacy and laboratory work, and any safety-critical or commercial measurement. In those cases, use calibrated equipment and the instructions of a professional or the product's maker.

Ingredient weights are averages from USDA FoodData Central. The weight of a real cup of flour or sugar depends on how you fill it, so treat these values as good estimates for cooking.

Pages that touch on health, such as the water intake calculator, give general information from public sources. They are not medical advice. If you have a medical condition, ask your doctor.

The site links to other websites and may show ads. We are not responsible for the content or practices of those sites.

We may update these terms. The date below shows the latest version.