Style for numbers and measurements supports accessibility and readability for users.

Choosing numerals or words
Numbers as numerals are generally easier for people to scan. Numbers as words remain a convention that people expect in some types of content.

Currency
Use the correct numbers, words and symbols for currency so people are clear about the amount.

Dates and time
Dates and times need to be readable. Write, abbreviate and punctuate dates and times consistently so people can understand your content.

Fractions and decimals
Decimals are useful when people need a precise value. Fractions are useful when an exact value is not important.

Mathematical relationships
Words can express mathematical relationships in most content. Code mathematical expressions in specialist content so itâ€™s accessible.

Measurement and units
Standard units of measurement support readability and accuracy. Express precise values for users by combining numerals with the correct unit symbol.

Ordinal numbers
Ordinal numbers such as first, second and third show the order and importance of things.

Percentages
Percentages help people compare things and understand proportions. Use numerals with the percentage sign. Be concise when you write about percentages.

Telephone numbers
Write telephone numbers so people can read and use them easily. There are rules for grouping the numbers, using spacing and creating links.