Free calculator

The Content Review Gap Calculator

How many hours of review does your content need, and how many do you have?

8 inputs · Instant result · Free, nothing stored · Updated 2026
Definition
Content review gap (n.)
The difference between the editorial hours a team's content volume needs for a proper review and the hours they really have to do it.

Work out your review gap

Move the sliders to match your team. The result updates as you go. Nothing you enter is stored or sent anywhere.

Start from Illustrative starting points, not benchmarks. Change anything.
Pieces published by the marketing team per month
15 pieces
Blogs, emails, social, ads, landing pages, decks. Count what goes out, not what's planned.
Pieces published from outside marketing per month
8 pieces
Sales decks, product emails and release notes, founder posts, help articles, website tweaks. Anything customer-facing that doesn't start in marketing.
Minutes for a proper review of one piece
45 mins
Protected review hours a week
2 hrs / week
Time you can genuinely protect for reviewing other people's work. Not time you'd like to have, and not time spent writing.
Who does most of the review?
Doesn't change the numbers. Changes the notes you get.
Is there a backup reviewer?
Someone who covers when your main reviewer is out.
How much of it starts life as an AI draft?
Used only to estimate how many unreviewed pieces are AI-drafted. It doesn't change the gap.
Hourly cost of senior editorial time
£45 / hour
A placeholder. Use your own: loaded salary divided by hours, or a day rate divided by 7.5.
Your review coverage
0%
reviewed
0
hours a month of review nobody has
0
pieces going out without a proper check
0.00
of a full-time editor, in hours
£0
of unfunded review time a year
Where this is showing up

Three ways to close it:

    Start here

      Methodology

      The calculator compares two numbers: the hours a proper review of your monthly output would take, and the hours your team has to do it. Everything else on the page is derived from the difference. There are no hidden multipliers, and every assumption that matters is on show and editable.

      Pieces = marketing pieces + pieces from outside marketing
      Hours needed = pieces × minutes per proper review ÷ 60
      Hours available = protected review hours per week × 4.33
      Review coverage = hours available ÷ hours needed (capped at 100%)
      Gap = hours needed − hours available (never below zero)
      Pieces without a proper check = pieces × (1 − coverage)
      Full-time editor equivalent = gap ÷ 162 hours (a 37.5-hour week × 4.33)
      Unfunded review time = gap × hourly cost × 12

      Assumptions, and how to change them

      AssumptionDefaultWhy, and what to do with it
      Pieces from outside marketing8Your input. Sales decks, product emails, founder posts and help articles go out under the company's name too. Counting only marketing's output undercounts what needs checking.
      Minutes per proper review45A read against the brief, a check of claims and figures, a tightening edit and a second look. A starting point, not a benchmark. A social post takes a fraction of this and a whitepaper takes far longer, so use the presets or set your own.
      Protected review hours per week2Your input. Count only time you can genuinely protect for reviewing other people's work. Time spent writing doesn't count, and neither does time you'd like to have.
      Weeks per month4.3352 weeks divided by 12 months.
      Full-time editor162 hrs a monthA 37.5-hour week multiplied by 4.33. Used only to express the gap as a fraction of a role.
      Hourly cost£45A placeholder for the blended cost of senior editorial time. Replace it with your own figure. It changes the £ number and nothing else.
      Who reviews, backup reviewerNot setThese two answers don't change any number. They change the notes you get. The leave figure uses 5.6 weeks, the UK statutory minimum for paid annual leave, and ignores sickness.
      AI-drafted shareSomeUsed only to estimate how many unreviewed pieces started as an AI draft, assuming AI use is spread evenly across your content. It doesn't change the gap.

      Why it asks about people outside marketing, and about who reviews

      In a company of 50 to 250 people, the marketing team is rarely the only team publishing. Sales, product and the founders all put words out under the company's name, and those pieces often skip the review a marketing piece would get. Only time spent by someone other than the author counts as review, because checking your own work isn't independent. And a review process that depends on one person has a hole in it for every week that person is out. The team presets are illustrative starting points, not a published benchmark. Replace them with your own numbers.

      What each result means

      Covered

      100% of output reviewed

      The hours are there. The question now is whether they go on the right pieces.

      • Check that review time goes to customer-facing and high-stakes pieces first
      • Re-run this whenever volume changes, because output creeps up faster than review hours do
      • Keep a record of what review catches, so the value of the hours is visible

      Thin

      75 to 99% of output reviewed

      Most pieces get a proper check. The rest depend on nobody having a bad week.

      • Work out which pieces tend to slip, usually the fast-turnaround ones and sales collateral
      • Agree a short list of content that never ships unreviewed
      • Name a backup reviewer for when the main one is out

      Stretched

      50 to 74% of output reviewed

      A large share of what you publish goes out without a proper check, and which pieces get one is probably decided by who is busiest.

      • Decide in writing which content gets a full review and which gets a light one
      • Hold off adding channels or formats until review hours catch up
      • Price the gap, then compare it with the cost of fixing mistakes in public

      Exposed

      Under 50% of output reviewed

      Most of what you publish goes out without a proper check. That is less a review process than a hope.

      • Name one person accountable for what ships, and give them the time to do it
      • Pause the lowest-value content until review catches up
      • Bring in senior editorial cover now, not after the next public error

      Context, not an input

      Review time is rising, not falling, as AI use spreads. A 2026 Tech.co survey of 300 small and medium business owners and executives found that about 26% of the time AI saves goes on reviewing, editing or fact-checking its output, roughly 16 minutes for every hour of AI use. That covers all AI use in small businesses, not editorial work specifically, so this calculator doesn't use it as an input. It's here because it explains why the review hours you budgeted last year may not stretch as far this year.

      What this doesn't measure

      The quality of your review

      An hour of tired skimming counts the same as an hour of proper editing. The calculator measures capacity, not skill.

      Which pieces matter most

      A gap in review hours is worse if it falls on a pricing page than on an internal update. The tool can't see that. You can.

      What mistakes cost you

      Reputational damage, lost deals and legal exposure are real but unmeasurable here. The £ figure is the value of the missing time, not the cost of an error.

      Whether 45 minutes is right for you

      It's the assumption most worth challenging. Change it and watch how sensitive the result is.

      Mike Sharkey

      About this tool

      Built by Mike Sharkey, a B2B copywriter and editorial consultant who has spent fifteen years writing and reviewing for organisations including Meta and Google Cloud, where nothing went out unchecked. It's offered free, with no login and no data collection, as a way for marketing teams to put a number on something they usually only feel: that they're publishing faster than they can check.

      So, is there a gap? Here's what closing it can look like for a growing B2B team.

      Learn more →

      Frequently asked questions

      What is a content review gap?

      A content review gap is the difference between the editorial hours a team's content volume needs for a proper review and the hours it has. If a proper review of 60 pieces a month takes 45 hours and the team has 26, the gap is 19 hours a month.

      How is the review gap calculated?

      Pieces published per month, inside and outside marketing, multiplied by the minutes a proper review takes gives the hours needed. Protected review hours per week multiplied by 4.33 gives the hours available. The difference is the gap. The share of pieces without a proper check is the proportion of output the available hours cannot cover, and the full-time editor equivalent is the gap divided by 162 hours, a 37.5-hour week multiplied by 4.33.

      Are my answers stored?

      No. The calculation runs in your browser. Nothing you enter is sent or stored, and there is no email gate.

      Why does the calculator assume 45 minutes per piece?

      It is a placeholder, not a benchmark. A proper review means reading against the brief, checking claims and figures, tightening the edit and taking a second look, and 45 minutes is a reasonable middle for mixed content. Short-form takes less and long-form takes far more, so change it to match your own content and see how sensitive the result is.

      Why does it ask about content from outside marketing?

      Sales decks, product emails, founder posts and help articles go out under the company's name too. In a company of 100 to 200 people a lot of customer-facing content comes from outside the marketing team, and it often skips the review a marketing piece would get. Leaving it out would understate what needs checking.

      Why does it ask who reviews and whether there is a backup?

      Those two answers do not change any of the numbers. They change the notes you get, because a review is only as independent and as dependable as the person doing it. Checking your own work is not independent review, and a process that depends on one person has no cover for the weeks that person is away.

      Does a review gap mean I need to hire an editor?

      For most mid-sized marketing teams the gap works out as a fraction of a full-time role, which is why fractional editorial support is more common than a hire. If you are weighing a hire anyway, the true cost of hiring calculator shows what one would cost.