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Bouldering grade converter

Font to V-scale and back, from 3 (VB) to 9A (V17), the hardest boulders climbed so far. Gyms grade by feel, so treat a conversion as close, not exact.

6C is V5. V5 covers 6B+ and 6C.

The full table

V-scaleFont
VB3
V04
V15
V25+
V36A
V46A+, 6B
V56B+, 6C
V66C+, 7A
V77A+
V87B, 7B+
V97C
V107C+
V118A
V128A+
V138B
V148B+
V158C
V168C+
V179A

Where one V grade covers two Font grades (V4 is 6A+ and 6B, V5 is 6B+ and 6C, V6 is 6C+ and 7A, V8 is 7B and 7B+), the Font grade is the finer one. It's the one to log if you want to see small steps.

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