Choosing the right diameter is one of the most important decisions when ordering custom medals. A medal that is too small may make logos, dates, names, and other details difficult to read. A medal that is too large can become unnecessarily heavy, expensive, or uncomfortable to wear.
The ideal size depends on the medal’s purpose, artwork, material, thickness, relief, ribbon, and target audience.
For sports competitions, school awards, military commemorative medals, police recognition, corporate awards, charity events, and anniversary programs, choosing the diameter early can also make the manufacturing process more predictable.
This guide explains common custom medal sizes, how diameter affects design and cost, and how to select the right dimensions for your project.
What Does Medal Diameter Mean?
For a traditional round medal, diameter is the straight-line distance from one edge of the medal to the opposite edge through the center.
For example:
- 40 mm = 4 cm
- 50 mm = 5 cm
- 60 mm = 6 cm
- 70 mm = 7 cm
- 80 mm = 8 cm
- 100 mm = 10 cm
However, diameter does not tell the entire story.
A 60 mm medal that is 3 mm thick can feel very different from a 60 mm medal that is 5 mm thick.
Similarly, a 60 mm simple 2D medal can have very different manufacturing requirements from a 60 mm highly detailed 3D medal.
What Is the Most Common Custom Medal Size?
There is no universal standard size for custom medals.
However, many manufacturers commonly produce medals in approximately the 40–80 mm range, with larger commemorative and championship medals also available.
Some published manufacturer specifications list common custom medal sizes around 50–120 mm, while typical thickness specifications can fall around 3–6 mm, depending on design and construction.
For practical planning, these size groups are useful:
| Diameter | Typical Positioning | Suitable Applications |
|---|---|---|
| 30–39 mm | Small | Mini awards, pins, compact recognition |
| 40–49 mm | Small/Medium | School, club, simple awards |
| 50–59 mm | Medium | General sports and recognition |
| 60–69 mm | Medium/Large | Marathon, corporate, military |
| 70–79 mm | Large | Championship and premium awards |
| 80–99 mm | Extra Large | Major events, commemorative medals |
| 100 mm+ | Oversized | Display, anniversary, special awards |
These ranges are planning guidelines rather than fixed industry standards.
40 mm vs 50 mm vs 60 mm vs 70 mm vs 80 mm
One of the easiest ways to choose a medal is to compare the visual and functional differences.
40 mm Medal
A 40 mm medal is relatively compact.
It works well when:
- The artwork is simple
- The medal needs to be lightweight
- Text requirements are limited
- The event requires a compact award
However, 40 mm can become restrictive when the artwork includes:
- Long organization names
- Multiple logos
- Detailed portraits
- Complex 3D artwork
- Several lines of text
Recommended applications
- School awards
- Small club competitions
- Employee recognition
- Simple commemorative programs
50 mm Medal
A 50 mm medal offers more design space without becoming excessively large.
It is a practical choice for:
- Running events
- School competitions
- Sports clubs
- Corporate recognition
- Charity events
- Community events
A relatively simple logo and event name can usually be arranged comfortably within this diameter.
For many standard recognition programs, 50 mm is a useful starting point.
60 mm Medal
A 60 mm medal provides a noticeable increase in visual presence.
It is suitable for:
- Marathon medals
- Championship awards
- Military commemorative medals
- Police recognition
- Firefighter recognition
- University awards
- Corporate achievement medals
The additional surface area is particularly useful when the design combines:
Logo + year + text + decorative border
It is also large enough for many 3D subjects without immediately becoming oversized.
70 mm Medal
A 70 mm medal creates a stronger premium appearance.
This size works particularly well for:
- Major sports events
- Championship medals
- Anniversary medals
- Military commemorative medals
- Large charity events
- Premium corporate awards
The larger surface allows designers to create more visual hierarchy.
For example:
Front: large 3D athlete
Back: event information + sponsor + date
This is one reason 70 mm medals are attractive for major events.
80 mm Medal
At 80 mm, the medal becomes a major visual element.
It is appropriate when:
- The artwork is complex
- The medal is intended as a keepsake
- A large logo is required
- The event is highly significant
- A premium presentation is desired
However, bigger is not automatically better.
An 80 mm medal can become heavy depending on thickness and material.
The ribbon and packaging also need to be designed accordingly.
90–100 mm Medals
Medals around 90–100 mm are generally better treated as oversized or special-format awards.
They can work for:
- Major anniversaries
- Historical commemorations
- Large championship events
- Special corporate awards
- Display-oriented awards
- Limited-edition collectibles
At this size, the manufacturer should pay particular attention to:
- Weight
- Structural strength
- Ribbon attachment
- Packaging
- Shipping
- Wearing comfort
How Diameter Affects Medal Design
Increasing the diameter gives the designer more physical space.
But the additional area is useful only if the artwork can take advantage of it.
For example:
40 mm
A simple:
LOGO + 2026
may work well.
60 mm
You could add:
LOGO + EVENT NAME + CITY + YEAR
80 mm
You might have enough room for:
3D Athlete + Event Logo + Event Name + Date + Location
This is why medal size should be selected after reviewing the artwork, rather than choosing a diameter independently.
How to Calculate the Available Medal Surface
For a circular medal, the approximate face area is:
A = π × r²
or:
A = π × (D / 2)²
where:
- A = surface area
- D = diameter
- r = radius
Consider three examples.
40 mm medal
Radius = 20 mm
Approximate area:
1,257 mm²
60 mm medal
Radius = 30 mm
Approximate area:
2,827 mm²
80 mm medal
Radius = 40 mm
Approximate area:
5,027 mm²
This produces an important insight:
An 80 mm medal does not have only twice the surface area of a 40 mm medal.
It has approximately four times the circular face area.
That is because surface area increases with the square of the diameter.
Why This Matters for Your Artwork
Suppose your artwork contains:
- Event logo
- Athlete
- Date
- Organization name
- Decorative border
A 40 mm medal may force the elements to become very small.
Increasing the medal to 60 mm provides approximately 2.25 times the circular face area of a 40 mm medal.
Moving from 60 mm to 80 mm increases face area by approximately 78%.
This is why a small increase in diameter can make a significant difference in design flexibility.
Diameter vs Thickness
Diameter and thickness should be evaluated together.
For example:
60 mm × 3 mm
is very different from:
60 mm × 5 mm
The second medal contains substantially more material if the overall geometry is comparable.
Thickness affects:
- Weight
- Rigidity
- Relief depth
- Perceived quality
- Material consumption
- Shipping cost
For many custom medals, a thickness around 3–6 mm is commonly specified, although the appropriate value depends on the medal’s diameter, material, relief, and construction.
How Diameter Affects Weight
For a simplified circular medal, material volume can be approximated as:
Volume ≈ π × (D/2)² × T
where:
- D = diameter
- T = thickness
This is only an approximation because real medals often include:
- Raised relief
- Recessed areas
- Cut-outs
- Irregular shapes
- Text
- Borders
- Edge profiles
Nevertheless, the formula demonstrates why diameter has such a strong effect on material consumption.
If diameter increases while thickness stays constant, material volume rises approximately with the square of diameter.
Example: 50 mm vs 70 mm
Assume two medals have the same thickness and roughly similar geometry.
The ratio of their face areas is:
70² ÷ 50² = 1.96
So the 70 mm medal has approximately 96% more face area than the 50 mm medal.
That does not mean its final price will be 96% higher because manufacturing economics include fixed tooling, quantity, labor, finishing, and other factors.
But it does demonstrate why diameter should be treated as a major manufacturing variable.
How Diameter Affects Cost
Medal pricing typically depends on several variables:
Total Project Cost = Tooling + Metal + Forming + Finishing + Enamel + Ribbon + Packaging + Shipping
Diameter influences several of these variables simultaneously.
Larger diameter can mean:
- More metal
- More polishing
- More plating surface
- More enamel area
- Greater weight
- Larger packaging
- Higher shipping weight
But there is another important factor:
Quantity
Tooling is generally a fixed project expense.
For example, if tooling costs $100:
At 100 pieces:
$100 ÷ 100 = $1.00 tooling cost per medal
At 1,000 pieces:
$100 ÷ 1,000 = $0.10 per medal
At 5,000 pieces:
$100 ÷ 5,000 = $0.02 per medal
These figures are only a mathematical illustration, not a quotation.
The lesson is that order quantity can have a major effect on effective unit economics.
Should You Choose a Larger Medal to Make It Look More Premium?
Not necessarily.
A premium medal is created by the combination of:
- Design
- Proportion
- Material
- Thickness
- Relief
- Plating
- Enamel
- Ribbon
- Edge treatment
- Packaging
A well-designed 60 mm medal can look more professional than a poorly designed 80 mm medal.
The goal should be:
Use enough surface area to reproduce the artwork clearly without adding unnecessary size and weight.
Best Medal Diameter by Application
Running & Marathon Medals
Recommended starting range:
50–70 mm
For major marathons, 60–80 mm can provide more room for:
- Runner
- Skyline
- Race logo
- Distance
- Year
- Event name
Soccer Medals
Recommended starting range:
40–60 mm
A simple football, club logo, and year can often work well within this range.
For championship events, larger designs may be appropriate.
Swimming Medals
Recommended starting range:
45–65 mm
A swimmer silhouette can be combined with:
- Pool waves
- Event name
- Year
- Club logo
School Medals
Recommended starting range:
40–60 mm
School awards usually benefit from clear:
- School logo
- Award category
- Year
- Achievement text
Military Commemorative Medals
Recommended starting range:
50–70 mm
Detailed military emblems, aircraft, ships, unit insignia, or historical imagery may benefit from additional surface area.
Police Recognition Medals
Recommended starting range:
50–70 mm
A department logo or badge can occupy the front, while the back can contain:
- Officer name
- Service years
- Recognition message
Firefighter Medals
Recommended starting range:
50–70 mm
A 3D helmet, Maltese cross, fire truck, or department emblem can work especially well on a medium-to-large medal.
Corporate Awards
Recommended starting range:
40–60 mm
For minimalist corporate designs, a smaller medal can create a sophisticated appearance.
Anniversary Medals
Recommended starting range:
50–80 mm
The larger diameter can provide room for:
- Anniversary number
- Company logo
- Founding year
- Current year
- Historical imagery
2D vs 3D: Does Size Matter?
Absolutely.
A 3D design requires enough physical space to show meaningful relief.
For example, a detailed:
3D eagle
may look impressive at 70 mm but lose important details when reduced to 35–40 mm.
Similarly, a portrait requires enough surface area to distinguish:
- Eyes
- Nose
- Mouth
- Hair
- Facial contours
Therefore:
The more detailed the 3D subject, the more important medal diameter becomes.
What Size Is Best for a 3D Medal?
For detailed 3D artwork, a starting point around 60–80 mm is often practical.
But this is not a universal rule.
The actual recommendation should consider:
- Subject complexity
- Relief height
- Material
- Thickness
- Viewing distance
- Number of details
- Enamel
- Plating
A simple 3D logo may work at 50 mm.
A detailed portrait may need significantly more space.
What Size Is Best for Enamel Medals?
Enamel depends heavily on the artwork.
For designs containing:
- Multiple colors
- Long text
- Logos
- Fine borders
- Small color fields
a larger diameter can make the design easier to manufacture and inspect.
For example, if the same artwork is available at:
40 mm
and
60 mm
the 60 mm version provides much more physical space for separating enamel areas.
Custom-Shaped Medals Are Different
Not every medal needs to be circular.
Popular shapes include:
- Shield
- Star
- Rectangle
- Hexagon
- Diamond
- Sports equipment
- Animal silhouettes
- Buildings
- Vehicles
- State/country outlines
For irregular medals, overall width × height is usually more useful than diameter.
For example:
70 mm W × 65 mm H
may describe a shield-shaped medal better than simply saying “70 mm.”
Double-Sided Medal Size
Double-sided medals require additional design planning.
For example:
Front
3D athlete
Back
Event logo + date + sponsor
A 50 mm medal might work, but 60–70 mm could provide more comfortable space for the reverse information.
For double-sided medals, consider:
Diameter + thickness + relief depth + weight
as a single engineering system.
Custom Medal Size and Ribbon Width
The medal and ribbon should look proportionate.
A very large medal paired with a narrow ribbon can feel visually unbalanced.
Likewise, a small medal attached to an excessively wide ribbon may look disproportionate.
The manufacturer should evaluate:
- Medal diameter
- Medal weight
- Ribbon width
- Ribbon length
- Attachment hole
- Clasp
- Wearing position
together.
Custom Medal Size and Packaging
Packaging becomes more important as medal diameter increases.
Small medals may fit standard polybags or compact boxes.
Large premium medals may require:
- Individual boxes
- Foam inserts
- Velvet boxes
- Presentation cases
- Protective sleeves
For 70–100 mm medals, packaging should be tested before bulk production.
A Practical Size Selection Formula
There is no universal mathematical formula that determines the perfect medal diameter.
However, buyers can use this decision framework:
Choose 40–50 mm if:
- Artwork is simple
- Text is limited
- Lightweight design is preferred
- Event is small or informal
Choose 50–60 mm if:
- You need a balanced general-purpose medal
- Logo + event name are required
- The medal is for school, sports, corporate, or charity use
Choose 60–70 mm if:
- Artwork is detailed
- You want stronger visual impact
- 3D relief is important
- The event is significant
Choose 70–80+ mm if:
- The medal is intended to be premium
- Artwork is highly detailed
- It is a major championship or anniversary
- Display value is important
Again, these are design guidelines rather than mandatory industry standards.
Realistic Design Case: Choosing a Medal for a 10K Race
Imagine a race organizer has this artwork:
- Runner
- City skyline
- Race logo
- “10K”
- “2026”
- Event name
- Sponsor logo
40 mm
The artwork may become crowded.
50 mm
Possible, but some elements may need simplification.
60 mm
Provides a better balance.
70 mm
Allows greater visual detail and stronger 3D treatment.
For this example, 60–70 mm would be a logical starting range, subject to final artwork review.
The organizer does not necessarily need the largest medal.
They need the smallest size that reproduces the important design elements clearly.
Common Mistakes When Choosing Medal Size
Mistake 1: Choosing the diameter based only on price
The cheapest medal is not necessarily the best value.
Mistake 2: Designing first and sizing later
A complex design may become difficult to manufacture if it is reduced too much.
Mistake 3: Using too much text
Small text is one of the most common problems in custom medal artwork.
Mistake 4: Making a detailed 3D design too small
Fine relief can lose definition when the physical surface becomes too small.
Mistake 5: Ignoring weight
A large, thick medal can become uncomfortable to wear.
Mistake 6: Ignoring the ribbon
The ribbon needs to support the physical size and weight.
Mistake 7: Ignoring packaging
Large medals require appropriate protective packaging.
Questions to Ask Your Medal Manufacturer
Before confirming the size, ask:
- Is my artwork suitable for 50 mm?
- Would 60 mm improve readability?
- Is 70 mm necessary for the 3D details?
- What thickness do you recommend?
- What will the approximate weight be?
- Which material is most suitable?
- Can the text be manufactured at the proposed size?
- Will enamel areas be large enough?
- What ribbon width should I use?
- Can you provide a digital mockup?
- Can you provide an estimated production weight?
- Can you make a physical sample?
- What packaging is recommended?
- What is the total landed cost?
- What is the expected production schedule?
Custom Medal Size Checklist
Before placing an order, confirm:
- Diameter or overall dimensions
- Thickness
- Material
- Front artwork
- Back artwork
- 2D or 3D relief
- Enamel colors
- Plating
- Edge design
- Ribbon width
- Ribbon length
- Attachment hole
- Packaging
- Quantity
- Target delivery date
Final Recommendation
For most buyers, the best approach is not to start with a fixed diameter.
Start with the artwork.
Then determine:
Artwork complexity → Required surface area → Diameter → Thickness → Material → Weight → Finish → Ribbon → Packaging
As a practical starting point:
- 40–50 mm: compact and simple
- 50–60 mm: versatile general-purpose range
- 60–70 mm: detailed and premium
- 70–80+ mm: major, oversized, or highly detailed awards
For a typical custom sports, military, police, firefighter, school, or corporate medal, 50–70 mm is often a useful range to evaluate first, but the final size should be based on the actual artwork and manufacturing requirements.
At ChallengeCoinBadges, we manufacture custom medals alongside challenge coins, police badges, military badges, lapel pins, keyrings, and other custom metal products. Our team can evaluate your artwork and recommend a suitable combination of diameter, thickness, material, relief, plating, enamel, and ribbon.
Website: www.challengecoinbadges.com
Email: sales@challengecoinbadges.com