At the 8 to 15 words per minute reported for composing by speech with earlier software, one hour of continuous composing would produce about 480 to 900 words.

Checked against its source on October 16, 2026

What it measures: This is the rate for composing sentences as you speak them, which is slower than speaking text you have already planned. The original software was older, so modern recognition may be faster.
How it is calculated: 8 words per minute x 60 minutes = 480 words; 15 x 60 = 900 words
What it does not show: Based on one earlier report from the 2000s. It does not measure a single author's book-length drafting, and individual rates vary widely.

Calculated from