Have you looked at what the gear calculators on line show you? This is my go to one for just it's simplicity, but it gives more info about gears you may not have in the results.
https://www.bikecalc.com/speed_at_cadence

With a 1x front changing the front ring will impact the entire range of gearing. So if the current low ratio gears are needed for any of the riding done on that bike, then they will be gone if you increase the size of the front rings.

If the bike is only ridden on pavement or packed gravel, it's hard to imagine the low gears are currently needed though.