Mark Rober has about 86.3 million YouTube subscribers, 27.9 million more than Ariana Grande, as of Nov 13, 2026. At the 30-day pace, Ariana Grande would not catch up.
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Mark Rober, with about 86.3 million YouTube subscribers to Ariana Grande's 58.4 million, a gap of 27.9 million as of Nov 13, 2026.
Never at the current pace. Mark Rober is growing faster than Ariana Grande over the last 30 days, so the gap widens by about 82.9K subscribers a day.
Over the last 30 days, Ariana Grande gains about 5.37K subscribers a day and Mark Rober gains about 88.3K subscribers a day.
