Why is 6.3 overs not the same as 6.3 in decimal?

Overs.balls notation uses six balls per over, not ten. 6.3 means 6 overs and 3 balls, which is 6 + 3/6 = 6.5 true decimal overs.

How do I convert overs to total balls?

Multiply the whole overs by 6 and add the balls part. For example, 12.3 overs is 12 x 6 + 3 = 75 balls.

Why does adding overs need rollover handling?

If a bowler bowls 3.4 overs then 2.5 overs, adding the digits directly gives 6.9, which is not a valid overs figure since a balls part can't exceed 5. The correct total is 39 balls (22+17), which converts back to 6.3 overs.

What is the highest valid balls part in overs.balls notation?

The balls part can only be 0 to 5. A figure like 12.6 or 12.7 is invalid; 12.6 should be written as 13.0.

What does rate per over mean here?

It is runs divided by true decimal overs, the same formula used for economy rate (bowling) or run rate (batting), applied to whatever overs and runs figure you enter.

Can I use this for a bowler's spell across a rain delay?

Yes. Enter each continuous spell as its own row in the Add Overs panel and the total balls and overs will combine correctly regardless of how many spells there are.

Cricket Over Calculator

Convert between overs.balls notation and total balls bowled, and add up overs across spells with correct 6-ball rollover.

Overs ↔ Balls

Overs (X.Y)

Total Balls

Type into either field, the other updates automatically. Balls part must be 0–5.

Runs (optional, for rate per over)

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Overs.Balls

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True Decimal Overs

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Rate / Over

Quick Examples

Add Overs (with Rollover)

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Total Overs.Balls

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Total Balls

Summary

Cricket overs are written as overs.balls, not as a decimal, because an over is six balls rather than ten. This calculator converts overs.balls notation to a total ball count and back, and adds several over figures together with the correct six-ball rollover, so 3.4 overs plus 2.5 overs comes out to 6.3 overs instead of the wrong 6.9. An optional runs field also gives the rate per over for either a bowling spell or a batting innings.

How it works

Enter overs in X.Y notation (Y is balls faced or bowled, 0–5) to see the total balls and true decimal overs.
Or enter a total ball count to see it converted back into overs.balls notation.
Add an optional runs figure to get the rate per over for that spell or innings.
In the Add Overs panel, enter each spell or session separately and the totals combine with the 6-ball rollover applied automatically.
Remove or add rows to combine as many over figures as needed.

Use cases

Convert a bowler's overs.balls figure into total balls for stats tracking.
Turn a raw ball count from a scoring app into readable overs.balls notation.
Add up a bowler's overs across multiple spells in the same innings.
Check a scorecard total by summing partnerships or session overs.
Work out runs conceded or scored per over without doing the ball-to-over math by hand.
Verify that a reported over figure like 12.7 is actually invalid (max balls part is 5).

Frequently Asked Questions

Last updated: 2026-09-09 · Reviewed by Nham Vu