6c+ to V Scale: How Font 6C+ Converts to V5 or 5.12b/c

If you’re trying to figure out how 6c+ in the Fontainebleau system converts to the V Scale or Yosemite Decimal System (YDS), the answer is pretty simple:

A Font 6C+ roughly equals V5 in the Hueco V Scale, comparable to the crux of a 5.12b/c route in the YDS. A French sport 6c+ route is a different grade, equal to about 5.11b.

This guide breaks down why that is, how the grading systems compare, and what it means for your climbing.

Key Takeaways

In the United States, the V scale is the most commonly used bouldering grade. It goes from V0, the easiest, to V17, the hardest. It is distinct from the French sport route scale, which also uses grades such as 6c+.
Converting a Font 6C+ boulder to the V scale puts it around V5, but real-world difficulty may differ from climb to climb.
Understanding both grading systems is essential for climbers who transition between bouldering and sport climbing, especially when traveling or climbing at new gyms.
A simple conversion chart lets climbers compare grades from different systems and disciplines, which helps with trip planning.
Climbers should focus on the physical and mental experience of each climb since factors like technique and body type can impact how a grade feels personally.
Moving beyond 6C+ takes focused training and realistic expectations. Climbing partners and coaches can help.

Quick Grade Comparison Chart

First, climbers often find it difficult to understand how their grade would compare to a different grading system. This problem is exacerbated when they travel across states or from sport climbing to bouldering.

Our quick grade comparison chart shows how 6c+ compares across grading systems. On the Font bouldering scale, 6C+ lines up with V5, according to Mountain Project's grade comparison chart. On the French sport scale, 6c+ is a route grade equal to about 5.11b.

The chart uses the Yosemite Decimal System (YDS), the most common scale for roped climbs in North America, and the Font Scale, which is widely used in Europe for bouldering. This will serve as a great resource for local and visiting climbers alike.

Here is a simple chart to show how grades line up across styles and scales:

Font (Boulder)	V Scale (Boulder)	Route crux (YDS, approx.)	French sport grade for that YDS
6C	V5	5.12b	7b
6C+	V5	5.12b/c	7b/7b+
7A	V6	5.12d	7c

Climbers rely on these charts for converting from one system to the other and for route planning. Some climbers find the V scale less precise, since the jump between grades can feel wide.

What is the V Scale?

The V Scale is a grading system specifically created for bouldering. It helps climbers understand the difficulty of a short, powerful ascent before they make an attempt. The scale was codified by John Sherman, nicknamed “Verm” for “Vermin,” for his 1991 Hueco Tanks guidebook, according to Climbing magazine. Now the “V” prefix appears on bouldering problems all across the United States.

The V Scale starts at VB, for “beginner,” and goes up to V17. The bigger the number, the more difficult the ascent. Most new climbers begin at VB or V0. At the other end, only a handful of V17 problems have been proposed.

The gap between each of these grades is not as black and white as it seems. Anyone who’s ever tried two V4s that didn’t seem anything alike knows how confusing that can be to novice climbers.

Compared to other grading systems, like the French grading scale adopted by much of Europe, the V Scale is very different in its approach. It favors bouldering more than rope climbing and it favors short, powerful moves.

The Font Scale, widely used outside the U.S., grades bouldering as well, but uses a different system of numbers and letters. Conversions between V Scale and Font are not always exact. For example, a V5 in the U.S. usually equals Font 6C on charts, but individual problems may feel different.

The V Scale as we know it today is primarily used in American climbing gyms and outdoor bouldering areas. Many regular boulderers spend years in the V3 to V6 range, while the pros aim much higher.

To others, the V Scale is a community language and a metric to measure bouldering progression.

Converting 6c+ to V Scale Directly

Directly converting a 6c+ French sport grade to a V scale bouldering grade is difficult. It’s not as simple as choosing a number, because the two systems describe different kinds of climbing.

The French sport 6c+ grade is in the sport climbing camp, focusing on longer, roped climbs, while the V scale is all about short, powerful boulder problems. A French sport 6c+ equals about 5.11b, so as a rough rule of thumb its hardest moves compare to V3 boulders.

A Font 6C+ boulder is a much harder grade, at about V5. These numbers are signposts, not promises, and conditions and styles matter a lot.

Whether you are making the transition between bouldering-only gyms or rope routes, knowing and understanding both grading systems is key. This information is especially essential if you climb internationally. While the French system values endurance on longer climbs, the V scale emphasizes brief, powerful movements.

A climber who is naturally suited to power could have a much easier time on V5 boulders, yet get shut down by a pumpy 6c+ sport climb.

Even within a single region, grades may vary due to rock quality, climbing style, or area culture. What is V5 for one climber could be V4 or V6 for another. Many climbers check conversion charts or ask local climbers for a ballpark.

You really only know when you try the climbs and make your own judgment.

Beyond Numbers: Feel the Difference

Numerical grades such as 6c+ or V4 give people a quick point of reference when describing a climb. But numbers can miss the feel of the rock. Even within a grade, there are many types of moves, styles, and techniques.

A V4 slab might involve tiny, delicate holds and careful movement. Over time, holds can break or polish, changing how hard a problem feels. If you’re strong, you may find a powerful V6 in the gym easier than a technical one.

Technique, grip, and body shape make a huge difference. Some climbers prefer slabs, while others thrive on steep, overhanging terrain. A 5.12d can feel harder than a 5.13a if it doesn’t suit your style.

A V0 is often compared to the crux of a 5.10a route, but that’s only a general guideline. Since a grade is usually first proposed by one climber rather than a committee, feedback from repeat ascents matters.

Comparing notes with friends gives a better sense of where a problem sits. Climbing is a subjective, individual pursuit. What may work for one climber will be the absolute wrong thing for another.

Why Grade Systems Evolved Differently

Grade systems in climbing always have a strong connection to the local culture, topography, and the era in which each style naturally developed. For instance, in Europe, individual areas developed their own methods to grade climbs. The British E-grade system was created to evaluate the level of risk on ethic-based, bold, traditional climbs.

In contrast, the French numerical system developed alongside the rising popularity of sport climbing. In the US, the Yosemite Decimal System (YDS) grew out of a class system for rating terrain from hikes to technical rock climbs, according to Climbing magazine's grade guide.

As each climbing style developed, grading expanded with it. Bouldering, with its emphasis on short, powerful moves, received its own V scale. Sport climbing in Europe relied heavily on the French system.

Ice and mixed climbing required another grade system to accommodate their unique hazards and gear. The Scottish winter grades, for example, consider the technical skill required and the risk posed by conditions or inadequate equipment.

Guidebooks and prominent climbers were instrumental in this evolution. Books contributed to establishing grades and transmitting them over long distances. Famous climbers tend to establish the most difficult new routes, and their interpretation of difficulty establishes the bar for others.

With each generation, these judgments set the standard for what counted as “difficult” or “easy.” Geography mattered too. Big, remote mountains in Alaska led to the Alaska Grade.

This grading system takes into account the weather, length and seriousness of the climb, not just the hardness of the moves. Variations in rock, climate, and climbing culture around the globe allowed each area to create a system that worked best.

Moving from 6c+ to Higher V Grades

Climbers at the Font 6C+ level are solid intermediate or advanced boulderers. The move up to higher V grades, such as V7 or V8, is a major hurdle. Font 6C+ converts to roughly V5 on the V scale. At V7 or V8, which equal Font 7A+ to 7B, you face harder sequences.

Most climbers know they could train better. Many concentrate on developing finger strength, core power and whole-body conditioning. Hangboarding is a great way to improve finger grip strength, particularly for smaller holds. Adding in some pull-ups, planks, and other core exercises is important for your overall power.

Many strong climbers add campus board workouts to train powerful, fast movement. Refining your technique is equally as important as building strength. Improving footwork, finding flow through the climbing, and figuring out how to relax on the wall all lead to tangible improvements.

When not on the wall, working with more experienced climbers or knowledgeable coaches can help identify little mistakes and correct them. Many find that joining local climbing groups or online forums brings in new ideas, beta for tough problems, and support during hard sessions. Measuring success, such as taking notes on sends and challenges, ensures that you establish concrete targets and maintain momentum.

It’s not just physical fitness. Mental toughness is key, and higher grades usually mean longer projects. Building confidence, managing fear, and staying focused will help you break through plateaus.

Each V grade is a sizable jump, so progress takes consistent, targeted work. Time and savvy training will enable climbers to earn consistent improvements. A strong community is what gets them over the hump to take it to the next level.

Common Pitfalls in Grade Conversion

Converting climbing grades such as French 6c+ to the V scale can be a challenge. There’s no single standard for comparing route grades with boulder grades, and the same grade can mean something different in one location versus another.

For example, a V5 at a city gym may feel a lot easier or harder than a V5 outside in Joshua Tree. The type of rock determines how easy or hard the climb will be. The size and shape of holds and route-setting are huge factors.

It is a common pitfall among many climbers to assume that these numbers are always in agreement, but this is seldom the case. Even at the same gym, a 6c+ can vary wildly from wall to wall.

Many new climbers focus purely on the grades and lose sight of what abilities each climb requires. Some climbers excel on steep technical climbs, while others shine on long slabs. This leads to our next pitfall…

Pitfall #2 – Using grade conversion charts without additional context. We’ve all seen grade conversion charts. Relying solely on them can be misleading, and you might end up on a climb well outside your ability level.

Each climber brings their own style and strengths, so their sense of what is hard or easy may not match yours. Grades also change over time as more people climb a problem and share feedback.

Trying a wide variety of climbs gives you a more accurate feel for grade conversion. Don’t let these pitfalls take away the fun.

Other Grade Systems Compared

Adventurers and travelers face a myriad of different grading systems, each developed by the customs and styles of the local culture. The V scale, widely used in North America, measures bouldering problems from V0 to V17. It gives an easy reference for short, steep climbs.

The French scale, used for rope climbing throughout Europe, combines numbers, letters and plus signs, such as 6c+ or 7a. Its small steps help you pick a route that is a little harder or a little easier.

The UIAA system is common in Germany and Central Europe. It uses Roman numerals, like VI+ or VIII-, for rock routes and alpine climbs.

Here’s a quick look at how these compare:

System	Use	Range	Features	Pros	Cons
V Scale	Bouldering	V0–V17+	Simple numbers	Easy to read, direct	Less subtle at higher end
French	Sport/Rope	1–9c	Letters, plus/minus	Fine grade steps	Can feel vague between gyms
UIAA	Trad/Alpine	I–XIII	Roman numerals, plus	Good for trad climbs	Hard to match with bouldering

Other systems such as the Font Scale, widely used in Europe, use grades such as 6B or 7A. South Africa, Brazil, and the Nordic countries also have their own scales.

Japan’s Dankyū bouldering scale is based on martial arts ranks and begins at 10-kyū for the easiest problems, according to Climbing magazine.

Grade conversions from one system to another are not exact. Charts list V15 as Font 8C, for example, but individual problems may feel different. Understanding how these operate is key when you’re trip planning or perusing guidebooks, since grades change by location.

Climbing Grade Conversions

Frequently Asked Questions

What does 6c+ mean in bouldering grades?

On the Font bouldering scale, 6C+ is a solid intermediate-to-advanced grade, about V5. Outside of Europe it is less common, since climbers in the U.S. rate boulder problems on the V Scale.

What is the V Scale equivalent of 6c+?

6C+ on the Font scale is approximately equivalent to V5 on the V Scale. This is only a rough estimate due to the variability in grading.

Why do some gyms use different grading systems?

Tradition and local climbing culture. In the U.S., the V Scale is the norm, but gyms in Europe commonly use the Font scale for boulders and the French scale for routes.

Are 6c+ and V5 always the same difficulty?

No. It’s very much about the subjectivity of grades which are entirely up to the gym, setter, or locale. Go by your own experience. Always attempt the problem yourself and make your own judgment.

How can I convert other French grades to the V Scale?

For Font boulder grades, 6A corresponds to about V3, 6B to V4, and 7A to V6. French sport route grades convert to YDS first: 6a is 5.10a and 7a is 5.11d. Treat these as ballpark estimates.

Why do grade conversions sometimes feel inaccurate?

Considerations such as hold style, wall angle, and individual strengths play a role in perceived difficulty. Conversions are not guaranteed, but rather guidelines.

Should I focus more on grades or how climbs feel?

While grades are useful for monitoring progress, getting the most out of the experience and having fun are what count.

Sources

International Climbing Grade Comparison Chart, Mountain Project
10 Things You Didn't Know about Bouldering Grades, Climbing
International Climbing Grades: Everything You Need to Know, Climbing