1. Use numerals for measurements of weight, volume, and in count values even if the number is less than 10. Always spell out the unit unless the description is UI-specific.

100 grams
5 gallons
4 persons

2. For units in decimal form and are less than one, add a zero before the decimal point.

0.63 kilograms
0.5 liters

3. Spelled out units of measurements by default takes on its plural form except when the number is 1.
Clarification: fractional numbers less than 1, which are written as decimals take on the unit of measurement’s plural form.

0.7 liters
1 kilogram
.17 fluid ounces

4. Hyphenated units of measurement take on the unit’s singular form. Never hyphenate a numeral with a unit’s abbreviated form.

2-kilogram chicken breast
12-cup rice
7 lb. past

5. Only abbreviated non-SI or Imperial units contain a period at the end.

2 tbsp. of sugar
0.4 kg of chicken breast
1 gal. of milk

6. For abbreviated units (to be used when describing values as they appear in the UI), add a space between the unit and the number.

Enter a specific yield size value and select its unit. For example, “1.4 kg”.

7. If a sentence ends with an abbreviated non-SI or Imperial unit of measurement, DO NOT add another period after the abbreviation.

Enter a specific serving size value and select its unit. For example, “0.6 lb.”