City Hall’s controversial decision to convert an Upper West Side shelter from housing women to men will force the current residents into outer-borough shelters, hours from their jobs and local connections, opponents said Monday.

“It’s horrible what they’re doing,” current shelter resident Sanisha Beecham, 29, told The Post.

“They came last Wednesday and confirmed that this is being turned into a men’s shelter and it’s beyond their pay grade to explain to us why,” Beecham said, standing outside the six-story building that’s housed adult women since Jan. 2010.

Borough President Gale Brewer said one female resident she spoke with was transferred to a new shelter in Queens — increasing her commute to two hours, while another was shipped off to a facility for drug-addicted and mentally ill people.

“We want these women to stay,” Brewer added.

“From my understanding, there is a beautiful community who have embraced the women behind me,” Public Advocate Jumaane Williams said. “To be uprooted from your home essentially is not a good thing.”

Brewer and Williams joined a group of local politicians, shelter residents and neighbors at a press conference outside the West 107th Street shelter Monday to call on Mayor Bill de Blasio to stop the plan.

“The women are part of our community, they’re nice, they work, they’re reliable, they don’t cause any major anything,” said Judith Lynn, 67, who’s lived on the same block as the shelter for nearly 40 years.

“It’s inhumane,” said fellow neighbor Pamela Kavenagh, 62.

“Some of these women — if you move them two hours away from here — they got jobs here, they’re going to end up right where they started and they’re going to lose everything they gained here,” Kavenagh said.

The city’s Department of Homeless Services said Monday that the move was necessary to make space for “the season increase in the need for shelter for single adult men as winter approaches.”

Agency spokesman Issac McGinn added that all the women residents will be relocated to more permanent housing or another shelter.