The 50/30/20 rule, the 5-5-5 rule, and what to do instead
The popular social media content ratios, where they came from, why they keep getting recommended, and a more defensible way to decide what to post.
Short answer
These ratios are rules of thumb with no research behind them. They persist because they are memorable and because they solve a real problem badly: people post too much about themselves. The useful part is the instinct, not the arithmetic. A better approach is to decide the ratio from what your audience already engages with rather than from a number someone invented.
Two of these show up constantly in the questions people search alongside social media management. It is worth saying plainly what they are.
What the rules claim
50/30/20 allocates posts across three buckets, usually something like half curated or educational content, a third original content, and a fifth promotional.
5-5-5 appears in several incompatible forms. Five posts, five stories, five engagements a day. Or five pieces of value for every five interactions and five promotions. The variation is a clue.
There is also the rule of thirds, the 80/20 rule, and the 4-1-1 rule, all making the same shape of claim with different numbers.
The honest position on them
None of these has a study behind it. They are heuristics that spread because they are memorable and easy to teach, and the proportions shift depending on who is repeating them.
That is not a reason to sneer at them. Heuristics exist because a rough answer beats no answer. But it is a reason not to build a content strategy on the specific numbers, and certainly not to feel you are failing because a month came out 60/25/15.
The real problem they are aimed at
Strip away the arithmetic and there is a genuine observation underneath.
Most businesses post as though the audience already cares. Announcements, milestones, offers, team photos, thinly disguised advertising. The implied contract is that the viewer should be interested because it is about you.
The rules are a crude fix: force a ceiling on how much of that you are allowed. That instinct is right. The number is invented.
A better test than a ratio
For any piece before it goes out:
Would this be worth someone's time if they had never heard of us?
If yes, post it. If no, it needs a reason to exist beyond being about you, or it should not go out.
That test does the same work as the ratios and adapts to your actual business. A company with genuinely interesting operations can post about itself far more than a rule of thirds allows, because the content passes. A company whose updates are not interesting to outsiders should post about itself far less than 20 percent.
Deriving your own ratio
If you want a number, get it from your own data rather than a blog.
- Take the last ninety days of posts.
- Sort by saves and shares, not likes. Likes are cheap and measure recognition. Saves and shares measure whether something was worth keeping or worth someone attaching their name to.
- Look at the top ten. What do they have in common, in format and in subject?
- Look at the bottom ten. Same question.
- Shift the mix toward the top and away from the bottom.
Repeat quarterly. That is a ratio derived from evidence about your specific audience, and it will not match anybody's rule.
One caution worth stating: this measures what already worked, which biases toward what you have already tried. Keep a slice of output for things you have no data on yet, or the process converges on a narrow band and stalls.
What we actually hold to
Cadence over ratio. A predictable rhythm beats a perfect mix delivered erratically, because stopping costs more than posting less and because a page that goes quiet has to rebuild rather than resume.
Then the single test above, applied to every piece before it goes out.
That is less satisfying than a number. It is also the thing that survives the next platform change, which no ratio has managed yet.
Frequently asked questions
Where did the 50/30/20 rule come from?
There is no original study. It circulates as marketing folklore with the proportions varying by whoever is repeating it, sometimes 50/30/20, sometimes 80/20, sometimes a rule of thirds. The absence of a source is the main thing to know about it.
So are the ratios useless?
The arithmetic is arbitrary. The instinct behind it is sound: most businesses post too much about themselves and too little that is worth someone's time on its own. Keep the instinct, drop the fixed percentages.
What should the ratio be?
Whatever your own last ninety days say. Sort your posts by saves and shares rather than likes, look at what the top ten have in common, and make more of that. That is a ratio derived from evidence about your audience rather than a number from a blog post.
Is there any rule worth keeping?
One: a piece has to be worth someone's time if they have never heard of you. That is the constraint the ratios are gesturing at, and it survives every platform change.
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