Belt Progression Calculator

Hours to Next Belt is a fixed lookup based on your Discipline and Current Belt Level — it represents the total cumulative training hours the belt table associates with reaching the next rank, independent of your schedule. Training Hours Per Week only affects how that fixed hour total converts into a calendar timeline (Months to Next Belt), not the hour total itself.

The calculator's cumulative-hours table estimates roughly 1,800 hours from white to black belt in BJJ, compared to roughly 480-900 hours for Taekwondo, Karate, and Judo. This reflects BJJ's widely known reputation for slower promotion — most practitioners take 8-12+ years to reach black belt versus 3-5 years typical in many striking arts — though actual timelines vary substantially by school and individual.

The calculator converts Training Hours Per Week into a monthly figure (multiplying by 4.33, the average weeks per month) and divides the fixed hours-to-next-belt requirement by that monthly rate. Doubling your weekly hours roughly halves the estimated months, since the underlying hour requirement itself never changes.

Current Belt Level only lists belts that have another belt above them, since the calculator's job is to estimate progress toward your *next* rank. For example, in Brazilian Jiu-Jitsu the dropdown offers White through Brown but not Black, because Black Belt has nothing further to estimate progression toward. Each discipline's dropdown shows only that discipline's real belt names — Karate's seven ranks, Taekwondo's six, and so on — so you always pick your actual current belt rather than a generic numbered level.