from ... to, between ... and
Number (+ Counter) +
This formation is used to specify a range between two numbers, indicating the minimum and maximum possible amounts, lengths, weights, or time. It is equivalent to saying from one number to another number, or between one number and another. The particle は can optionally be attached to
Number Range
Connects two numbers with their appropriate counters to demonstrate a numerical range.
５人
Between 5 and 10 people will gather.
３時間
It will take 3 to 4 hours.
When expressing a range, the particle は is completely optional and does not change the meaning of the sentence. This grammar point sounds slightly formal and is often used in written instructions, news, or announcements rather than casual everyday conversation.