Is a percentile rank of 0 possible?

Yes — but it’s extremely rare.

Percentile means:
The percentage of students scoring below you.

• So, if you scored the absolute lowest — meaning no one scored less than you — your percentile would approach 0.

In real-life exams:

• You might see 0.001 percentile or extremely low percentiles for candidates who barely attempted the paper or left it blank.

Key point:

• Even scoring very few marks usually gives you some percentile because often, some candidates score even less.
• Full 0 percentile happens practically only if you’re at absolute rock bottom of the entire dataset.

Don’t worry too much about this — what matters is:
Identify your weak areas, work consistently, and climb the percentile ladder.