New International Version
In those days Peter stood up among the believers (a group numbering about a hundred and twenty)

American Standard Version
And in these days Peter stood up in the midst of the brethren, and said (and there was a multitude of persons gathered together, about a hundred and twenty),

Berean Study Bible
In those days Peter stood up among the brothers (a gathering of about a hundred and twenty) and said,

Douay-Rheims Bible
In those days Peter rising up in the midst of the brethren, said: (now the number of persons together was about an hundred and twenty:)

English Revised Version
And in these days Peter stood up in the midst of the brethren, and said (and there was a multitude of persons gathered together, about a hundred and twenty),

King James Bible
And in those days Peter stood up in the midst of the disciples, and said, (the number of names together were about an hundred and twenty,)

World English Bible
In these days, Peter stood up in the midst of the disciples (and the number of names was about one hundred twenty), and said,

Young's Literal Translation
And in these days, Peter having risen up in the midst of the disciples, said, (the multitude also of the names at the same place was, as it were, an hundred and twenty,)

Acts 1:15 Additional Translations ...