Sean Combs will be sentenced on Oct. 3, a federal judge decided on Tuesday.

Last week, a jury found Mr. Combs guilty on two counts of transportation to engage in prostitution, charges that were related to hiring and arranging travel for male escorts to have sex with his girlfriends in voyeuristic encounters known as “freak-offs” and “hotel nights.” The music mogul was acquitted on the most serious counts, sex trafficking and racketeering conspiracy, after an eight-week trial.

Mr. Combs faces a maximum sentence of 20 years in prison, but it is unusual for federal judges to assign the maximum punishment. The time that Mr. Combs will have already served in jail, which will be one year at the time of sentencing, would be credited to the ultimate sentence.

Prosecutors have said that based on their preliminary calculations, federal sentencing guidelines indicate a range of at least 51 to 63 months’ imprisonment, or four and a quarter to five and a quarter years. But the government could ask for more time. Sentencing guidelines are used to create a penalty range based on various factors, including the nature of the offense, specifics of the case and personal characteristics of the defendant, such as the person’s criminal history.

Using the same guidelines, Mr. Combs’s defense team calculated a very different range: between 21 and 27 months, with the top of that range being just over two years.

After the verdict last week, Judge Arun Subramanian, who oversaw the trial, denied Mr. Combs’s request for release on bail, citing the defense’s own admissions that its client had been responsible for domestic violence.

Judge Subramanian scheduled the sentencing after the defense and the government were supposed to debate the logistics at an afternoon hearing. But the two sides came to an agreement on the date beforehand.