Understanding Internal Link Ratio
How we calculate. Internal link ratio % = (internal ÷ total links) × 100. See our methodology and accuracy policy .
Real-world scenario: A typical Internal Link Ratio case uses internal links 24 and total links 30. Enter the same figures below to reproduce the worked path.
What is Internal Link Ratio?
A structural SEO metric for navigation and content hubs. Extremely low internal linking can weaken crawl paths and topical clustering.
- Count unique hrefs or raw anchors—be consistent
- Exclude #fragments if they are same-page only
- Hub pages often lean more internal
The Formula
Worked Example
Common Use Cases
- Content audits: orphan risk signals
- Template QA: footer/nav vs body links
- Topic clusters: reinforce pillar pages
Pro Tips
- Quality of targets beats raw ratio
- Don’t spam sidebars
- Use descriptive anchors
| Scenario | When to use |
|---|---|
| Percent of a number | Finding a part of a whole (tax, tip, score) |
| Percent change | Comparing old vs new values |
Limitations: Internal Link Ratio results are educational SEO planning aids—not guarantees of rankings or traffic. Search algorithms and attribution models vary.
Common mistakes
- Swapping part and whole: The denominator must be the full total, not a subset.
- Rounding too early: Carry extra decimal places through multi-step work before rounding the final percent.
- Mixing percent and decimal forms: Enter rates in the format the calculator labels expect.
When to use this calculator
- Use this page when your wording matches internal link ratio and the form labels on screen.
- Use percent of a number for “what is X% of Y?” problems.
- Use number is what percent when you know part and whole and need the percent.
Still unsure about internal link ratio? Start with the quick answer above, then open the linked calculator that matches your wording.
❓ Frequently Asked Questions
How do I use this internal link ratio calculator?
For internal link ratio, enter the values labeled on the form, then press Calculate. Compare the result to the worked example on this page.
What formula does this page use?
See the quick answer and formula box above for internal link ratio—the same percentage calculator expression is applied to your inputs.
What if my result looks wrong?
When checking internal link ratio, re-check part vs whole (or rate vs base), rounding, and whether percents were entered as 25 rather than 0.25 when the form expects percents.
Authoritative References
For search and analytics guidance, consult:
- Google Search Central — crawling, indexing, and ranking documentation
- W3C — web standards that affect crawlable HTML
- Google Analytics Help — engagement and traffic metrics