17 useful answers
Make sense of kitchen quantities, temperatures, and everyday units.
Search this topicA US customary cup holds 8 US fluid ounces. That is a volume measurement, not a promise that its contents weigh 8 ounces. For example, 1½ cups of liquid equals 12 fluid ounces. If a recipe gives an ingredient in ounces by weight, use a scale rather than converting it with the cup’s liquid markings.
For standard US kitchen measures, 1 tablespoon equals 3 teaspoons. So 2 tablespoons is 6 teaspoons, and half a tablespoon is 1½ teaspoons. Use marked measuring spoons instead of ordinary cutlery. Check the recipe’s measurement system before converting an international recipe; a tablespoon is not the same volume in every country.
An ordinary ounce of weight is approximately 28.35 grams. Multiply ounces by 28.35 to estimate grams: 4 ounces is about 113.4 grams. This conversion is for avoirdupois ounces, the kind commonly used for everyday ingredient weights. A fluid ounce measures volume, while a troy ounce is a different mass; do not substitute either without checking the units.
A US liquid quart contains 4 US customary cups. To convert quarts to cups, multiply by four; 2½ quarts becomes 10 cups. To go the other way, divide the number of cups by four. Keep the measurement system consistent when reading older or international recipes, and do not confuse liquid quarts with dry-volume measures.
Multiply US liquid gallons by four to get US liquid quarts. One gallon is 4 quarts; 1½ gallons is 6 quarts. For the reverse calculation, divide quarts by four. Write the unit beside every number so you do not accidentally use a cup or pint value in the same calculation.
For an ordinary statute mile, multiply miles by 5,280. A half-mile is 2,640 feet, and a quarter-mile is 1,320 feet. Divide feet by 5,280 to convert back to miles. A nautical mile is different, so confirm which kind your map or task uses before applying this conversion.
A US customary cup is approximately 236.6 milliliters, calculated from eight US fluid ounces. Some recipe charts round this to 240 mL, while other cup systems use different sizes. For a recipe that provides metric quantities, follow its stated milliliters rather than switching cup systems partway through. One half of a US customary cup is approximately 118.3 mL.
To convert Celsius to Fahrenheit, multiply by 1.8 and add 32. For example, 20°C becomes 68°F. To convert Fahrenheit to Celsius, subtract 32 first, then divide by 1.8: 77°F becomes 25°C. Keep the order of those operations. When converting an oven recipe, select an appropriate available setting and follow the recipe’s doneness checks.
Small controlled movement is intentional on many tape measures: it compensates for the hook's thickness when pushing against an inside edge or pulling over an outside edge. Do not tighten or glue it rigid. A bent hook, damaged rivets, or excessive movement still calls for an accuracy check or replacement.
Yes. Clean the measuring faces, close the jaws gently and check the zero reading before using the caliper. Repeat the open-and-close check to confirm it is consistent. A stored origin on an absolute caliper does not remove the need to check for dirt, damage or an unexpected reading. Follow the instrument’s instructions before resetting its origin.
Check cleanliness, jaw alignment and measuring force. Hold the jaws square to the dimension being measured and use a light, consistent touch rather than squeezing harder for a preferred number. Recheck zero and repeat the measurement in the same position. Persistent variation may indicate the technique, the part’s shape or a damaged instrument rather than an electronic problem.
One US customary cup is 16 US tablespoons. Half a cup is 8 tablespoons, one quarter is 4, and one third is 5 tablespoons plus 1 teaspoon.
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In “How many tablespoons are in a cup?”
Eight US tablespoons equal half a US customary cup.
In “How many tablespoons are in a cup?”
No. Cup and tablespoon conventions can differ. Use the recipe’s stated units and do not mix systems.
Read the whole inch before the endpoint, add the remaining fraction, and write the unit. On a metric scale, ten millimeters make one centimeter.
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In “How to read a tape measure: inches, fractions, and millimeters”
No. Decimal inches and fractional inches are different notations. Three sixteenths is 0.1875, so 5 3/16 inches is 5.1875 inches.
In “How to read a tape measure: inches, fractions, and millimeters”
Use the unit requested by the task and write it with the number. For example, 84 mm and 8.4 cm describe the same length. Avoid recording only “8.4” or mixing an inch measurement from one edge with millimeter marks from the other.
Source checks for these answers: September 21, 2026 – September 22, 2026. Product instructions and local requirements can vary.