Duckworth-Lewis Calculator
Calculate a revised target score using the Duckworth-Lewis method for cricket matches interrupted by weather — the internationally recognized rain rule.
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
This tool provides general sports and fitness estimates for educational purposes only. It is not medical advice — consult a physician before starting or intensifying training, especially if you have a cardiovascular condition.
About the Duckworth-Lewis Calculator
The Duckworth–Lewis calculator gives a simplified estimate of the par score when rain interrupts a limited-overs chase. The method recognises that a batting side has two resources — overs and wickets — and uses a resource table to compare what each side had available. This tool approximates the standard table; official matches use the DLS (Duckworth–Lewis–Stern) software.
How to use it
- 1Enter the target set by the first team.
- 2Enter the overs remaining and wickets lost by the chasing side when play stopped.
- 3Enter the total overs in the match and press Calculate.
Worked example
chasing 280 in a 50-over match, a side that has lost 3 wickets with 20 overs left has about 29% of its resources remaining, so the tool gives a target of about 200 if no further play is possible.
How it works
About D/L Method
The method assigns each team a resource percentage based on overs and wickets remaining, adjusting targets proportionally when interruptions reduce overs.
Common use cases
- Understanding rain-affected results
- Following ODI and T20 matches
- Learning how DLS works
Frequently asked questions
A:The D/L method uses tables of "resources" (overs and wickets remaining) to calculate fair revised targets when matches are interrupted.
A:It applies when the team batting second has fewer overs than the first team due to interruption.
A:This is a simplified educational estimate. Official D/L calculations use proprietary ICC software.
A:The DLS (Duckworth-Lewis-Stern) method is an updated version used since 2014.
A:Frank Duckworth and Tony Lewis developed it in the 1990s; it was first used officially in 1997.
Reviewed for accuracy · Last updated October 7, 2026
Formulas follow published sports-science literature and official league definitions (Karvonen heart rate reserve, Cooper and Bruce protocols, MET compendium values, and standard baseball, cricket, and basketball statistics).
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
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