Free tool · No signup

Keyword difficulty checker

Explore a 0–100 heuristic score from observations you enter. The fixed weights are not calibrated ranking probabilities, and the tool does not fetch search results.

This is an estimate, not a vendor metric. It is not Ahrefs KD, Semrush KD, or Moz Difficulty, and it is not derived from a link graph. It scores your entered values using the published weights below. Prefilled values are illustrative examples; replace them with your own observations.

Enter a nonnegative whole-number observation. Blank or invalid counts do not produce a score.

3 / 10

Wikipedia, Amazon, national media, .gov/.edu, category leaders

5 / 10

Count exact matches; this does not verify targeting intent

6 / 10

A page about this topic, not a homepage or broad category page

1 / 10

Reddit, Quora, Q&A threads — count without inferring an opportunity

46

Moderate heuristic score band

Middle range under the chosen weights; it does not prescribe a content cluster or predict effort.

Competing pages

clamp((log10(1,000,000) − 3) ÷ 5, 0, 1) × 25

+15

Big brands in top 10

(3 ÷ 10) × 30

+9

Exact-keyword titles

(5 ÷ 10) × 20

+10

Purpose-built pages

(6 ÷ 10) × 15

+9

Paid ads on the SERP

0 (no ads)

0

Forum / UGC results

−2 × 1 (capped at −10)

-2

Keyword length

0 words → +5

+5

Total (clamped to 0–100)

46

The formula

difficulty =
    clamp((log10(results) - 3) / 5, 0, 1) * 25   // competing pages
  + (bigBrands / 10) * 30                         // brand barrier
  + (exactTitles / 10) * 20                       // deliberate targeting
  + (dedicatedPages / 10) * 15                    // purpose-built competition
  + (adsPresent ? 5 : 0)                          // commercial pressure
  - min(10, forumResults * 2)                     // UGC opening
  + lengthAdjustment                              // 1 word +5, 4-5 words -5, 6+ words -10

clamped to the 0-100 range

The weights are a judgement call, chosen so that the barriers that actually stop pages from ranking — established brands holding the top 10 and pages built on purpose for the term — carry the most weight. Because the formula is fixed and visible, two people scoring the same SERP the same way get the same number, and you can argue with the weights instead of with a black box.

Quick answer

What does this keyword difficulty calculator measure?

This calculator applies fixed weights to observations you enter about search results. Its 0–100 output is a heuristic comparison score, not measured ranking difficulty or a calibrated probability. The tool does not fetch search results, validate your observations, or account for your site’s ability to rank.

Replace the illustrative inputs

Prefilled counts demonstrate the calculation. They are not research about your keyword. Replace them with observations made under a consistent search location, language and date when comparing topics.

Reported result counts are approximate source observations, not a census of competing pages. Brand, exact-title, dedicated-page and forum counts also involve judgement; the tool does not verify those classifications.

Understand the chosen weights

The formula adds a log-scaled reported-results component up to 25 points, brand count up to 30, exact-title count up to 20, dedicated-page count up to 15, and 5 points for ads. The first four components are rounded separately.

It subtracts two points per forum result, capped at ten. Keyword length adds five points for one or fewer whitespace-separated words, subtracts five for four or five words, and subtracts ten for six or more. Two or three words add zero. The final sum is clamped to 0–100.

These weights express assumptions rather than proven competitive effects. Forum results do not establish an opportunity, exact titles do not establish deliberate targeting, and ads do not measure the organic effort required.

Compare cautiously and research separately

Use the component breakdown to see which entered values change the score. There is no validated threshold where a new site can rank or where a content cluster becomes necessary.

The calculator does not measure demand, backlinks, factual quality, indexing, current positions or citation likelihood. Assess those factors separately when they matter to a content decision.

Where this data comes from

The calculation runs from entered counts, an ads checkbox and the whitespace-separated word count of the keyword. Fixed component weights, rounding and clamping produce a reproducible score for identical inputs. No live search results, backlink graph or ranking outcomes are consulted. Prefilled inputs are examples, and score bands are descriptive ranges under this formula only.

Frequently asked questions

Is this a live keyword difficulty lookup?

No. You enter observations and the calculator applies a fixed formula. It does not fetch search results.

Are the initial values researched for my keyword?

No. They are illustrative values showing how the formula works. Replace them with your own observations.

Does a low score mean I can rank?

No. The score is not a ranking probability and does not account for your site, demand, content or indexing.

Is there a good score for a new site?

This formula has no validated new-site threshold. Use the component breakdown as a research prompt, not a feasibility verdict.

Do forum results prove an opportunity?

No. The formula applies a chosen discount to forum counts, but their presence does not establish that another page can displace them.

Can I compare this with vendor difficulty metrics?

The scales and inputs differ. Treat this as its own entered-input heuristic, not an equivalent to a vendor metric.

Related free tools

Build a reviewed draft from your research

AutoSEO offers keyword research, drafting and publishing workflows for supported connections. Review generated content and metadata before publishing. The plan is $39/mo per website, charged today; cancel anytime, with a 30-day money-back guarantee. Rankings and AI citations are not guaranteed.

Get started for $39/mo

Stop doing SEO by hand

Build your SEO content plan with AutoSEO

Scan your site, build a keyword plan, and let AutoSEO write your articles. Review the drafts and connect your site for publishing. $39/mo per website, cancel anytime.

$39/mo per website · Cancel anytime · 30-day money-back guarantee