Brandon Nimmo laughed for several seconds Tuesday night when asked what he believes to be a reasonable expectation for his on-base percentage this season.

The rest of his answer explained how his approach at the plate has made him the consummate leadoff hitter in baseball to start this season, and he rapped three more hits in Wednesday’s 5-1 win over the Phillies to boost his otherworldly OBP to .583 through his first eight games.

“I just try not to waste any at-bats,” Nimmo said. “There’s going to be at-bats throughout the season that I’m unhappy with, that I don’t come through. So my goal is to go up there for every single at-bat and not give one away mentally, so that way, hopefully, it will even out.

“Just trying to do my job and pass the baton. That’s just part of how I’m programmed. I’ll let the numbers take care of themselves.”

Nimmo batted eighth in the Mets’ lineup on Opening Day, but was shifted to the leadoff spot for their next seven games, including Wednesday night’s contest.

With singles in his first two trips, Nimmo became the 10th MLB player since 2000 — including David Wright in 2012 — to reach safely multiple times in each of his first eight games of a season. He also legged out another infield hit in the eighth inning, beating first baseman Rhys Hoskins to the bag.

“He’s carried over what he did last year,” hitting coach Chili Davis said of Nimmo, who matched his career high with a .404 OBP in 2020. “We’ve all loved Nim’s plate discipline because he’s not a guy that chases out of his zone very often.

“Knowing that, he’s learning and becoming a little more aggressive in the zone when he needs to be. I like his approach. It is a very simple approach. With his plate discipline, he’s going to get a lot more hits and he’s going to be on base because he doesn’t chase outside the zone very often.”

Manager Luis Rojas also managed Nimmo coming through the Mets’ minor league system, and he said he sees the 28-year-old outfielder taking a more aggressive approach, looking for his pitch and rarely taking it.

“He’s got a bigger ‘Yes’ going on. Like a capital letter ‘Yes,’ ” Rojas said of Nimmo’s aggressiveness.

Indeed, Nimmo has registered an NL-best .464 batting average (13-for-28) with a .571 slugging percentage, despite still looking for his first home run. The top three hitters in the lineup — Nimmo, Francisco Lindor and Dominic Smith combined Wednesday to finish 8-for-14.

“I’ve been really fortunate to have Francisco behind me. And I think that’s allowed me to get some good pitches to hit,” Nimmo said. “We have a really solid lineup, so I definitely think I can fall to the back of people’s minds on that. I’ve been able to take advantage of some mistakes.”

— Additional reporting by Greg Joyce