Duckworth Lewis Calculator
Find revised targets and par scores using an openly identified historic Duckworth–Lewis Standard Edition resource table. Understand how overs, wickets and interruptions change a cricket match.
Calculate your revised target
Published 2002 D/L Standard Edition · One interruption only · Whole overs only · Not official modern professional DLS.
Reference: ICC DLS information · Historic Standard Edition resources · ICC worked examples.
Second innings rain interruption?
Use our Duckworth Lewis Calculator for Second Innings to explore a revised chasing target, runs still needed and par score under the historical Standard Edition.
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Use quick, free tools for match scoring, tournament statistics and chasing targets.
Run Rate
Calculate a team’s scoring speed in runs per over.
Open calculators →Required Run Rate
Find the runs needed per over to reach the target.
Open calculators →Net Run Rate
Compare runs scored and conceded across a tournament.
Open calculators →How the Duckworth–Lewis method works
Duckworth–Lewis considers two forms of batting resources: overs still available and wickets in hand. Rain cuts into the opportunity to score, but losing overs when nine wickets remain is different from losing overs when just one wicket remains.
In the Standard Edition, each combination of overs remaining and wickets lost has a resource percentage. When play stops, the batting team loses the resource difference between its situation before the interruption and the reduced innings it must complete. Resources available to the two teams determine the revised target.
For a team batting second with fewer resources, the historical Standard Edition scales the first-innings score by the resource ratio. With more resources, the G50 scoring parameter is used. The displayed target is one above the calculated par score.
Note: Official games use the governing body’s applicable playing conditions and official scoring systems. This website is independent and is not affiliated with the ICC.
Frequently asked questions
Is this the current official DLS calculator?
No. It uses a historic Standard Edition resource table, not the current professional DLS system. Targets from an official match may differ.
Can I use it for a T20 rain delay?
Yes, select 20 overs. The tool supports simple interruptions at the end of a complete over only. Its answer is for learning, not a match-official decision.
What is the difference between target and par score?
Par is the chasing team’s score to be level under the calculation. Its target to win is one run above par. Other playing-condition rules may still apply.
Can I enter 12.3 overs?
No. This version accepts completed overs only. Cricket notation 12.3 means 12 overs and 3 balls, not 12.3 decimal overs. Use an appropriate official tool for interruptions between overs.