What the calculator shows
Each layer can hold the previous layer times the span. With a span of 6, the CEO manages 6 people, they manage 36, those manage 216. So 120 people fit in four layers, but only if every manager really has six reports. Drop the span to 4 and you need a fifth layer; raise it to 11 and three layers are enough.
That is the whole trade-off in one slider. Narrow spans give managers time for coaching and review, but add layers, and every layer is another hand-off between the front line and the person who decides. Wide spans make the organisation faster and cheaper to run, but each person gets less of their manager’s attention.
What is a good span of control?
Most practical guidance lands between five and ten direct reports for knowledge work. The right number for a particular manager depends on the work, not on a rule:
| Situation | Pushes span… | Why |
|---|---|---|
| Team does similar, well-defined work | Wider (10–15+) | Less coordination; one playbook covers everyone |
| Experienced, self-directed people | Wider | Less supervision and coaching needed |
| Complex, varied or novel work | Narrower (3–6) | Each person needs more context and decisions |
| Manager also does hands-on work | Narrower | Less time available for managing |
| New or junior team members | Narrower | More onboarding and feedback |
| Strong tools and processes | Wider | Status and quality are visible without meetings |
Span of control and the shape of your chart
Wide spans produce a flat organizational structure; narrow spans produce a tall hierarchy. Span also shapes the chain of command: fewer layers mean fewer links between any employee and the top.
To check your real spans, build your chart in the org chart maker. Its stats panel shows average span, widest span and number of layers, and flags managers with more than ten direct reports.