eg

meta description tester.

char + pixel width check with ecommerce serp preview

0120 (ideal start)160 (max)
characters
146/ 160
pixel width ~
949/ 920px
status
over

> google serp preview

Men's Waterproof Trail Running Shoes, Acme Outdoor
https://www.acmeoutdoor.com › running › trail-shoes
★★★★☆4.2 · 386 reviews·In stock·$129.00 – $159.00

Men's waterproof running shoes engineered for trail and road. Free shipping, 30-day returns, and a 12-month warranty. Shop sizes 7–14 in 6 colors.

> worked example

Input: "Men's waterproof running shoes engineered for trail and road. Free shipping, 30-day returns, and a 12-month warranty. Shop sizes 7–14 in 6 colors.", 149 characters, ~969px estimated width. Character count is under the 160-char limit and pixel width just nudges the 920px threshold; status shows ok. Trimming 'and a 12-month warranty' brings both metrics comfortably within range. The SERP preview renders the description below a star-rating and price row, typical for a product page rich result.

takeaway, Pixel width is the actual gate Google uses, not character count. A description can be under 160 chars but still truncate if it uses wide glyphs.

> when operators reach for this

  • Shopify SEO leads writing PDP descriptions who want instant feedback without switching to a browser plugin.
  • Ecommerce copywriters drafting descriptions for 50 SKUs and needing to confirm each one clears Google's pixel threshold.
  • Agencies auditing a client site's meta descriptions and checking how each one renders in a realistic SERP card before a pitch.
  • Devs templating dynamic meta descriptions and verifying the longest possible variant still fits within limits.
  • In-house marketing teams A/B-testing description copy and needing a visual preview of the star-rating + price row that appears for product pages.

> the calculation

  • recommended chars120–160 characters
  • pixel width heuristicchar count × 6.5px (Arial 14px average glyph width)
  • google pixel max≈ 920px before truncation
  • status thresholdsunder < 120 chars · ok 120–160 chars · over > 160 chars or > 920px

> related calculators, seo & metadata