The British number one dropped just four games as she dispatched Romanian Irina-Camelia Begu 6-0 6-4.
It was Konta's first match since her second-round defeat at the US Open a fortnight ago and will give her hope she can do better at the next grand slam, the French Open, which starts next week.
Konta reached the semi-final at Roland Garros last year and will be happy with her start on clay here as she demolished the Romanian.
The first set was a bagel, completed in just 30 minutes, with Konta completely hitting her opponent off the court.
It looked like being a similarly one-sided affair in the second set as Konta raced into a 4-1 lead but Begu did finally put up some resistance.
The Brit saw it through, though, to set up a last-16 tie with former French Open champion Garbine Muguruza.