Design Conversions

Size Chart Design Tips for Better Conversions

Create size charts that are easy to read, visually appealing, and boost customer confidence. Master the design principles that reduce returns and increase sales.

10 min read
UX Design
Size chart design tips showing before and after comparison of poorly designed vs well designed size chart with improved typography, colors, and layout

Why Design Matters

A confusing or hard-to-read size chart causes customers to abandon carts, order wrong sizes, contact support, and leave negative reviews. Good design = fewer returns and more sales.

🛒
Cart Abandonment

Confusing charts drive shoppers away

📦
Wrong Size Orders

Customers guess and get it wrong

💬
Support Tickets

"What size should I order?"

Bad Reviews

"Sizing was all wrong"

🎨 Essential Design Elements

1 Clear Typography

Font Size

Minimum 14px, 16px+ recommended

Font Family

Sans-serif for readability

Bold Headers

Make column/row headers stand out

2 High Contrast Colors

Good Design

Size Chest Length
S 38" 27"
M 40" 28"

✓ Dark header, alternating rows, clear borders

Bad Design

Size Chest Length
S 38" 27"
M 40" 28"

✗ Low contrast, hard to read, no visual hierarchy

3 Logical Organization

  • Sizes as columns – small to large, left to right
  • Measurements as rows – chest, waist, hips, length
  • Most important first – key measurements at top
  • Units clearly labeled – cm/inches visible

4 Visual Measurement Guide

Include a diagram showing where measurements are taken. This eliminates confusion about measurement points.

Measurement diagram showing exactly where chest, waist, hip, and length measurements should be taken on a garment
Measurement diagram helps customers understand exactly where to measure

📱 Mobile Optimization

60%+

of e-commerce traffic is mobile. Your size chart MUST work on small screens.

📱 Mobile Design Checklist

Use horizontal scroll for wide tables
Make text at least 14px on mobile
Use sticky headers that stay visible
Consider vertical layout (size per row)
Test on actual mobile devices
Make "Size Chart" button easy to tap

📍 Placement Best Practices

1

Near "Add to Cart" Button

Most important location! Customers see it exactly when they need it.

2

In a Popup/Modal

Keeps shoppers on the product page while viewing the chart.

3

Product Image Gallery

Include size chart as one of the product images.

4

Product Description Tab

Accessible but not intrusive for those who scroll down.

Make the Size Chart Link Obvious

  • • Use icons (📏 ruler, measuring tape icon)
  • • Clear text: "Need help with sizing? View Size Chart"
  • • Contrasting color or underline
  • • Large enough tap target for mobile (44px minimum)

⚖️ Image vs HTML Table

Format Pros Cons
HTML Table SEO-friendly, accessible, easy to update, translatable Limited design options
Image Full design control, can include diagrams, branded Not accessible, harder to update, not searchable

💡 Best Approach: Use an HTML table for measurements (SEO + accessibility) + a separate image for the measurement diagram (visual clarity).

Create Beautiful Size Charts

Generate professionally designed size charts that follow all these best practices. Free to use.

Create Free Size Chart

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Frequently Asked Questions