How long should you study for the GMAT? What the data suggests
There is no universal number of hours for the GMAT, but there is a sensible way to estimate: start from your diagnostic, define the jump you want and convert it into weeks at the workload you can actually sustain.
Estimating by score jump
These are reference ranges, not promises. The factor that pushes them up the most is studying without an error log and without timing control.
- Jump of up to 30 points: 60 to 90 hours, usually 6 to 8 weeks.
- Jump of 30 to 60 points: 100 to 150 hours, typically 10 to 14 weeks.
- Jump above 60 points: 150 to 250 hours, generally 4 to 6 months.
Consistency beats volume
Five 75-minute sessions a week produce more than two four-hour weekend marathons. Spaced repetition depends on frequency: without regular contact, content reviewed in one block evaporates before the next mock.
How to know you need more time
If two of those three signals persist, postponing the exam date is usually cheaper than burning the attempt.
- Your last two official mocks came in more than 40 points below target.
- Average time per question is still well above target in two or more sections.
- The same error cause still tops your log after three weeks of focus on it.
Estimate by the hours your jump requires, spread them across short frequent sessions and let the error log tell you when you are ready.
Want the full method and the app?
The GMAT Descomplicado eBook (27 chapters, updated for the Focus Edition) comes with app access: error log, spaced-repetition flashcards and a pacing tracker.