How to Make an Infographic for Social Media: Structure, Sizes and Design Rules

An infographic is one of the few content types that people save, forward and come back to, because it turns something complicated into something they can grasp in half a minute. It is also one of the easiest formats to ruin: too many numbers, tiny text, five fonts and a layout that falls apart on a phone screen. This guide shows how to make an infographic for social media that is clear, readable and worth sharing, even if you are not a designer: from choosing the idea to sizes, fonts, colors, accessibility and the choice between a single image and a carousel.

1. Start with a message, not with a template

The most common reason infographics fail is that they are built from a template, and the content is poured in afterwards. Start with the opposite question: what should the reader understand or do after looking at this? Good infographic topics have a clear shape:

• A process: how to prepare for a procedure, how to order, how to choose a size.
• A comparison: two options, before and after, myth and fact.
• A list or a checklist: seven things to check, five mistakes to avoid.
• A timeline: the stages of a project, a customer’s journey, a seasonal calendar.
• A hierarchy or a map: where each product fits, which service is for whom.
• A set of numbers: a few key figures that you can verify.

Write the main message as a headline sentence first: “Choosing a mattress takes four questions” is a stronger start than “Mattress infographic”. If you lack ideas, our guide to content formats for a content plan shows where an infographic fits among other formats.

2. Collect and trim the content

Infographics are not the place for everything you know. Aim for 20–60 words of body text for a single image and 15–40 words per slide in a carousel. A useful trick: write the full text first, then cut it by half, then cut again.

• Use verified facts. If you quote a figure, make sure you know its source and date. Do not invent or round numbers into false precision.
• Prefer your own data and experience: prices you set, steps you take, questions customers ask. It is more original and more trustworthy than recycled statistics.
• Replace sentences with fragments, paragraphs with bullets and abstract words with specific ones.

3. Choose the structure

Most good infographics follow a simple frame:

1. Headline. The main message in plain words, at the top, largest text.
2. Short lead-in (optional). One line that sets context or promises the result.
3. Body in blocks. Three to seven blocks, each with a number or icon, a short title and one line of explanation.
4. Key takeaway or call to action. One sentence at the bottom: what to do next.
5. Source and brand mark. Small, at the bottom or corner: your name or logo, and the source if you cite data.

Reading order must be obvious. People in left-to-right languages scan from top left; do not make them hunt for what comes next. Numbers, arrows and consistent spacing do the work of a guide.

4. Single image or carousel?

Choose	When	Why
Single image	One comparison, one short process, one summary or a map	Seen at a glance, easy to save and share, works on every network
Carousel	Step-by-step guides, lists with explanations, stories with a build-up	Each slide has room to breathe; swiping adds time spent on your post
Short video or animation	A process that changes over time	Motion helps, but needs more production effort

For a carousel, make the first slide a headline that promises a result, the last slide a summary plus one action, and keep every slide understandable on its own, since people may stop halfway. For more ideas see our guide to Instagram carousel ideas.

5. Sizes and formats

Networks change their recommendations and cropping rules, so check the current requirements before you publish. These are the commonly used working sizes:

Where	Common working size	Notes
Instagram feed, portrait	1080 × 1350 px (4:5)	Takes the most space on screen; usually the best choice for infographics
Instagram feed, square	1080 × 1080 px (1:1)	Safe universal choice; carousels use one aspect ratio for all slides
Stories and Reels covers	1080 × 1920 px (9:16)	Keep text away from the top and bottom edges where interface elements sit
LinkedIn single image	1200 × 1200 px or 1080 × 1350 px	Document-style carousels are often uploaded as PDFs
Facebook feed	1080 × 1350 px or 1080 × 1080 px	Crops in the Feed can differ by device
Telegram post	Up to about 1280 px on the long side; a square or 4:5 image reads well	Very tall images get cropped in the preview; send large files as a file if text must stay sharp

If you want to check sizes quickly, a free image sizes tool lets you look up the current dimensions for each network. Always leave a margin of about 60–80 px around the edges and keep key text inside the central safe area, because feeds and grids crop edges.

6. Hierarchy: guide the eye

Hierarchy is the difference between “designed” and “crowded”. Use three levels and no more:

• Level 1: the headline, the largest and boldest element.
• Level 2: block titles and key numbers, medium size.
• Level 3: supporting text, small but still readable on a phone.

Create contrast through size, weight and colour, not through decoration. Align everything to a grid, keep the same spacing between blocks and leave empty space: white space is not waste, it is what makes the content readable. A good test is to shrink the image to the size of a thumbnail: if you can still tell the headline and the structure, the hierarchy works.

7. Fonts

• Two fonts at most: one for headlines, one for body, or just one family in two weights.
• Choose clear, open letterforms. Decorative and thin script fonts break on small screens.
• Check that the font supports all the languages you publish in, including accents and Cyrillic, so that characters do not fall back to a different font.
• Minimum body size. On a 1080 px wide image, body text under about 28–30 px is hard to read on a phone; headlines are usually 60 px and larger.
• Line length and spacing. Short lines, generous line height, left alignment for most text.
• Avoid long text in capitals, which slows reading.

More basics in our guide to social media graphics design tips.

8. Colors

Take two or three brand colors and one neutral. Use one strong color for emphasis (numbers, key words, icons) and keep the background calm. Check contrast: dark text on a light background, or light text on a dark one, without gray on gray. A practical rule is that normal text should reach at least the 4.5:1 contrast ratio recommended in the WCAG accessibility guidelines, and large text at least 3:1. Free contrast checkers exist, and it takes a few seconds to test your main combinations.

Use color to carry meaning consistently: for example, the same accent for “do” and another for “avoid”, but never rely on color alone, because some viewers cannot distinguish certain pairs. Add icons or labels as well.

9. Icons, charts and illustrations

• One icon style throughout: all outlined or all filled, with the same line weight.
• For charts, keep one chart per message, label values directly instead of using a legend, start bar charts from zero and avoid decorative 3D effects.
• Photos: use your own where possible. Do not put text over a busy photo without a solid or darkened panel behind it.
• Do not use another brand’s logos or recognisable characters without permission, and check licences of any stock or AI-generated material you include.

10. Make it accessible

• Write alt text that describes the content (not “infographic”): the headline and the main points in one or two sentences, where the network allows alt text.
• Repeat the key information in the caption, so the post is useful to screen reader users and findable by search.
• Keep contrast and size as described above, and do not hide meaning in tiny footnotes.
• Do not use flashing or fast animation.
• Use plain language and explain abbreviations.

11. A simple workflow in eight steps

1. Write the headline message and the target action.
2. Collect and verify the facts, cut the text.
3. Choose the format: single image or carousel.
4. Sketch the structure on paper or in a text list.
5. Build it on a template with your fonts and colors.
6. Check on a phone at real size: can you read it in an arm’s length?
7. Write the caption with the key points and a clear call to action.
8. Publish at your usual time and look at saves and shares after a week.

12. How to do it in AI SMM

AI Content Studio helps with the parts that usually take the most time. Give it the topic and key points, and it drafts the text for blocks, a headline variation and the caption in your brand’s tone, and it can generate or adapt images in the style of your brand for covers, backgrounds and illustrations. For exact numbers, labels and layouts, check and edit the result yourself or finish the layout in the design tool you already use. When the post is ready, put it into the calendar: carousels and single images can be scheduled to Instagram, LinkedIn, Threads and other networks from one place. Note that Facebook Pages do not support carousels, so publish a single image there. After publishing, analytics shows reach and engagement for the networks that support it, so you can see whether your infographics get saved and shared.

FAQ

What is the best size for an infographic on Instagram?

A portrait 1080 × 1350 px (4:5) image uses the most space in the feed and is usually the best choice. A square 1080 × 1080 px also works. Check current guidance, since networks change cropping rules.

How much text should an infographic have?

For a single image, roughly 20–60 words in addition to the headline; for a carousel slide, 15–40 words. If you need more, split into more slides or move details into the caption.

Should I use a carousel or a single image?

Use a single image for one clear comparison or summary. Use a carousel for step-by-step content and lists that need explanations. When unsure, test both on your own account and compare saves and shares.

Do I need a designer?

No, if you keep a simple system: two fonts, three colors, a grid and templates. A designer helps most when building your first templates and brand style; after that, you can reuse them yourself.

Pick one topic your customers ask about every week, write the headline and five blocks, and turn it into a carousel. Draft it in AI SMM Content Studio and refine from there.