Email Size Calculator
Check your HTML email weight and ensure it won't be clipped by Gmail or slow to load.
codeHTML Email Code
analyticsSize Breakdown
Paste HTML code above to see the size breakdown.
content_cutGmail Clipping Threshold
No data0 KB102 KB (Gmail clips here)150 KB
warning
Email will be clipped!
Gmail will add a "[Message clipped] View entire message" link, hiding content below 102KB.
0
KB Total Size
0
Images Found
0
Links Found
speedEst. Load Time
3G (1.5 Mbps)0ms
4G (10 Mbps)0ms
WiFi (25 Mbps)0ms
*HTML only, excludes external images
lightbulbQuick Tips
- checkKeep under 102KB to avoid Gmail clipping
- checkRemove unnecessary whitespace and comments
- checkUse CSS shorthand properties
- checkAvoid base64 encoded images
Why Email Size Matters
content_cut
Gmail Clipping
Gmail clips emails over 102KB, showing "[Message clipped]" and hiding content. This can break layouts and hide CTAs.
speed
Load Performance
Large emails take longer to load, especially on mobile. This impacts engagement and can lead to deletions before the email even renders.
shield
Spam Filters
Excessively large emails can trigger spam filters. Keep your emails lean to improve deliverability.