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Climbing Grade Converter

V-Scale to Font, both directions, no fluff. Pick a grade — the other side translates instantly.

Full V-Scale to Font conversion chart

V-ScaleFontWhat it feels like
VB3 – 4First session territory — big holds, ladder moves
V04 / 4+Beginner — jugs, straightforward feet
V15 / 5+Confident beginner — smaller holds appear
V25+ / 6AThe first "problems that fight back"
V36A / 6A+Regular gym climber after a few months
V46B / 6B+The classic first plateau — technique required
V56C / 6C+Intermediate — body tension and real crimps
V67AThe grade every gym climber chases
V77A+Advanced — training starts to matter
V87B / 7B+Strong — years of mileage behind it
V97B+ / 7CThe border of the elite amateur world
V107C+Double digits — a lifetime goal for most
V118AElite amateur / sponsored territory
V128A+Semi-pro
V138BProfessional
V148B+World-class
V158CA handful of climbers per generation
V168C+The current frontier
V179AThe hardest confirmed boulders on Earth

How the two scales work

The V-Scale (from "Vermin", John Sherman's nickname) was born in Hueco Tanks, Texas. It's open-ended, linear, and used across the USA and most gyms worldwide. The Font scale comes from Fontainebleau, France — the oldest bouldering area in the world — and mixes numbers, letters and pluses (6A, 6A+, 6B…). Neither is "more accurate": they're two languages describing the same pain.

Why every conversion is approximate

Grades are consensus, not physics. A Font 6B in Fontainebleau might shut down a V5 gym climber — outdoor grades are notoriously harder than indoor ones, and every area has its own history of sandbagging. Treat this chart as a translator, not a promise: if you're heading outside for the first time, read our gym-to-crag guide and expect to drop two or three V-grades. That's normal, and it's temporary.

Quick answers

What is V4 in Font grades?

V4 converts to roughly Font 6B / 6B+. It's the classic "first plateau" grade in both systems.

Is a gym V4 the same as an outdoor V4?

Almost never. Gym grading is softer — most climbers lose 2–3 V-grades on their first outdoor trips before adapting to real rock.

What's the hardest boulder grade in the world?

As of today, V17 (Font 9A) is the top of the confirmed scale, with only a few problems in the world at that grade.

What grade should a beginner aim for?

VB–V2 covers your first months, and that's exactly where it should be. The tribe respects the attempt more than the number — that's kind of our whole thing.

Built free for the tribe by CRACX — the people behind the Ascend bouldering chalk bucket. More straight talk on Field Notes.