Max Overs Per Bowler Calculator

What This Calculator Does

Most bowler-limit questions get answered for the three headline formats — T20’s 4 overs, the ODI’s 10 — and stop there. But plenty of real cricket isn’t played to those exact lengths: club sixes tournaments run 8-over knockouts, corporate leagues play 12- or 16-over derbies, and school fixtures invent their own over count depending on daylight and pitch time. This calculator works out the bowler cap and minimum bowlers needed for any innings length, not just the three standard ones.

The Formula: One-Fifth of the Innings, Rounded Up

Every standard limited-overs format caps a single bowler at one-fifth of the innings. This is the same “20% of the overs” rule CricPulse’s own scoring engine uses to enforce bowler limits automatically for T20 and ODI matches, extended here to any custom over count:

• T10 (10 overs): 10 × 0.2 = 2 overs per bowler
• T20 (20 overs): 20 × 0.2 = 4 overs per bowler
• ODI (50 overs): 50 × 0.2 = 10 overs per bowler
• A 12-over club match: 12 × 0.2 = 2.4, rounded up to 3 overs per bowler
• A 16-over derby: 16 × 0.2 = 3.2, rounded up to 4 overs per bowler

Rounding up matters — it’s the difference between a bowler technically being allowed 2.4 overs (which doesn’t exist as a legal delivery count) and the 3-over cap a 12-over match actually uses. The minimum number of bowlers a team needs is just the innings length divided by that cap, rounded up: a 20-over innings with a 4-over cap needs at least 5 different bowlers to get through it, even if one or two never finish their full quota.

Worked Example

Why This Rule Exists

Capping any one bowler at a fifth of the innings forces a team to field a genuine bowling attack rather than leaning on one or two strike bowlers for the whole match — it’s a fairness rule as much as a workload one. It’s also the same ratio behind T10’s 2-over bowler cap, and distinct from the age-based ECB fast bowling directives that protect junior bowlers regardless of match format — if you’re checking limits for an under-18 or younger bowler, use our junior bowling spell & workload limit calculator instead, since those caps are about player safety, not format balance, and are usually stricter than the one-fifth rule for a short-format match.

Bringing on a tactical substitute mid-match? The same one-fifth cap still applies to them — read our guide to the Impact Player rule for exactly how that substitution and its own bowling restrictions work.

Frequently Asked Questions

How is the maximum overs per bowler worked out?
No single bowler can bowl more than one-fifth of the innings, rounded up. For a 20-over innings that’s 4 overs; for a 50-over innings it’s 10 overs. For lengths that don’t divide evenly into five, round up — a 12-over innings gives a cap of 3 overs per bowler.

How many overs can a bowler bowl in T20 cricket?
A maximum of 4 overs out of the 20-over innings.

How many overs can a bowler bowl in an ODI?
A maximum of 10 overs out of the 50-over innings.

Is there a bowler over limit in Test cricket?
No. The only restriction is that a bowler cannot bowl two overs in a row from the same end.

What about club or corporate matches with a non-standard over count?
The one-fifth rule is the convention most leagues use even for an invented over count, though it isn’t an ICC Law for informal formats — check your own competition’s playing conditions if you’re not sure.

Score It Automatically with CricPulse

CricPulse applies this exact bowler limit for you as you score — pick a standard T10, T20 or ODI preset, or set any custom over count for a club or corporate match, and the app enforces the cap live, warning you before a bowler goes over their quota instead of leaving it to someone’s mental arithmetic in the middle of an over. Free on iOS and Android.