Free BJJ tool
BJJ mat-hours calculator
Estimate how many hours you spend on the mats each year, then compare your pace against broad belt progression ranges.
Calculator
Estimate your yearly mat hours.
This does not predict promotions. It gives you a cleaner way to understand training volume so belt timelines feel less mysterious.
Estimated annual volume
216mat hours/year
| Transition | Hours | At this pace |
|---|---|---|
White to blue A common hobbyist range for building survival, escapes, and core fundamentals. | 150-300 | 8.3-17 months remaining |
Blue to purple Often the long middle stretch where consistency and deliberate rounds matter most. | 250-500 | 14-28 months remaining |
Purple to brown A broad estimate for advanced refinement, teaching ability, and personal game depth. | 200-450 | 11-25 months remaining |
Brown to black The most variable stage because academy standards, competition, and teaching context differ. | 200-500 | 11-28 months remaining |
Want these hours saved automatically instead of estimated from a calculator?
How to use the estimate
Mat hours are useful because they turn vague calendar timelines into something closer to training volume.
Be honest about breaks
Travel, injuries, work, and family all change the yearly number. The honest estimate is the useful one.
Use ranges, not promises
Every coach and academy has different promotion standards. Treat the ranges as context, not a deadline.
Save the real sessions
The calculator is a snapshot. SeventhFlow is where the actual training history should live.
Turn the estimate into a real training history.
Use SeventhFlow to log BJJ sessions, promotions, coach context, gym identity, and the long arc of progress.