INTRODUCTION
You’ve designed a beautiful poster but here’s the problem:
Your message might get ignored if the text is too small.
Here’s the twist most people don’t realise:
Font size and readability are just as important as colours, images, and layout.
If you get it wrong, even the most striking poster won’t get noticed.
Let’s break down how to choose the perfect font size for maximum impact.
Why Font Size Matters on Posters
- Readability: People must read it quickly from a distance.
- Hierarchy: Titles, subheadings, and body text need to stand out appropriately.
- Brand Authority: Proper typography conveys professionalism.
- Impact: Large, clear text attracts attention even in busy environments.
Recommended Font Sizes for Posters
| Poster Size | Heading / Title | Subheading | Body Text | Notes |
|---|---|---|---|---|
| A3 (297x420mm) | 36–48 pt | 24–30 pt | 14–18 pt | Small posters for offices or events |
| A2 (420x594mm) | 48–72 pt | 28–36 pt | 18–24 pt | Medium posters for shops or events |
| A1 (594x841mm) | 72–120 pt | 36–48 pt | 24–36 pt | Large posters for walls or exhibitions |
| A0 (841x1189mm) | 120–200 pt | 48–72 pt | 36–48 pt | Very large posters, trade shows, billboards |
Tip: Always consider the viewing distance. For every additional metre away, increase the font size by 10–15%.
Font Style & Readability
- Sans-serif fonts (Arial, Helvetica, Open Sans) → Best for large posters
- Bold weights → Help text stand out against images or colours
- Avoid decorative fonts for body text → Only use for headings
- Line spacing → At least 1.2–1.5x font size for clarity
Key Tips for Poster Typography
- Hierarchy is key → Make headings larger than subheadings and body
- Contrast matters → Text must stand out from background
- Limit fonts → 2–3 max to keep design clean
- Test readability at distance → Print a small draft and check visibility
- Bold & uppercase for important info → Dates, calls to action, phone numbers
Common Mistakes to Avoid
❌ Using fonts that are too small → people won’t read them
❌ Too many font types → cluttered, unprofessional look
❌ Low contrast → text blends into background
❌ Ignoring the viewing distance → text appears tiny on large posters
The #1 mistake: Using a font that looks good on screen but is unreadable in print. Always test at full size.
Final Thoughts
The best font size for a poster depends on:
- Poster size
- Viewing distance
- Font style
- Importance of hierarchy
Use large, readable headings, slightly smaller subheadings, and clear body text.
This ensures your poster grabs attention and communicates your message effectively.
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