Ranges
Use a consistent style for ranges so that they're clear and accessible.
Ranges of numbers and measurements
Write ranges as words, using the phrases "from...to..." or "between...and..."
note
Don't use dashes or hyphens to indicate ranges. Dashes and hyphens are often ignored by screen readers, so ranges written in this way aren't accessible.
Write numbers in ranges as numerals, including numbers less than 10.
If the range involves units, then repeat the unit for each number unless the unit is a unit of time.
If the range doesn't include the values of the endpoints, then use the words "greater than," "less than," and "or equal to" to make the acceptable values clear.
Ranges of dates and clock times have slightly different rules. For more information, refer to Ranges of dates and clock times.
| Incorrect | Correct |
|---|---|
| between 70-100 users | between 70 and 100 users |
| from three to seven times | from 3 to 7 times |
| 2/3 m | from 2 m to 3 m |
| 3–5 days | 3 to 5 days |
| >5 kg and <7 kg | greater than 5 kg and less than 7 kg |
| from 3 cm to ≤6 cm | from 3 cm to less than or equal to 6 cm |
| (0, 1] | greater than 0 to less than or equal to 1 |
Ranges of dates and clock times
For more information about writing dates and times, refer to Dates and times.
Write dates and clock times in ranges in full. Separate the start and end of the range with the word "to." Introduce the range with the word "from" as needed.
In ranges of time, always include the AM or PM indicator for both the start and end times. If you are specifying a time zone, write it once at the end of the time range.
| Incorrect | Correct |
|---|---|
| Mon-Fri | Monday to Friday |
| October 1–5 2023 | October 1, 2023 to October 5, 2023 |
| 1:00 to 5:00 PM | 1:00 PM to 5:00 PM |
| 10 AM–2 PM Central European Standard Time (UTC+1) | 10:00 AM to 2:00 PM Central European Standard Time (UTC+1) |
For ranges involving both dates and times, use the following formats:
| Range | Formula | Example |
|---|---|---|
| Start and end times on the same date | date from start-time to end-time | May 4, 2025 from 12:00 PM to 4:00 PM |
| Start and end times on different dates | from start-date at start-time to end-date at end-time | from Thursday, June 1 at 9:00 AM to Friday, June 30 at 5:00 PM |