A required run rate tells a chasing team exactly how fast it must score to win. It is the runs needed divided by the overs left. If the number is low, the chase is comfortable. If the number climbs, the pressure grows with every dot ball. Every cricket fan has watched a chase swing on this one number.
This free calculator works out the chase from four numbers: target score, current score, balls remaining, and wickets in hand. Type them in and it shows runs needed, required run rate, and how many sixes or fours would finish the job alone. No sign-up, no download, and the tool runs fully in your browser.
The formula is simple. Runs needed equals target minus current score. Required run rate equals runs needed divided by overs remaining, where overs remaining is balls remaining divided by six. For example, chasing 200 at 120 for with 60 balls left: 80 runs are needed from 10 overs, so the required run rate is 8.00. That means 8 runs per over, every over, from here on.
Wickets in hand do not change the arithmetic, but they change the meaning. A required rate of 8.00 with 8 wickets left is very gettable: batters can attack freely. The same rate with only 2 wickets left is dangerous: one more wicket and the tail is exposed. The tool shows wickets in the inputs so you judge the number with full context, not alone.
To use the tool, enter the target score first. In a limited-overs game this is the total the other team scored plus one. Then enter the current score of the chasing team. Then enter the balls remaining, not the overs: 60 balls is 10 overs, 30 balls is 5 overs. Finally enter the wickets still in hand. Press calculate and read the four results.
The sixes and fours figures are a planning aid. They show how many boundaries alone would cover the runs needed: 80 runs needs 14 sixes or 20 fours. Real chases mix singles, twos, and boundaries, so treat these as outer limits, not as a plan. They are most useful for showing how far behind a chase is: if you need 14 sixes from 60 balls, the chase is in trouble.
How do you read the required rate as a game unfolds? Compare it with the current run rate and with what the batters can realistically score. If the required rate is below the current rate, the chasing team is ahead. If it rises above 10 in a T20, the batting team needs big overs soon. If it rises above 12, the game usually needs a miracle or a collapse from the bowling side.
Captains use required rate to set fields and choose bowlers. When the required rate is low, the fielding captain can attack with close catchers, because batters must take risks anyway. When it is high, the bowling team protects the boundary and dares batters to hit over the top. Batters use it too: they pick which bowler to attack by asking which over can bring the rate back down.
Common mistakes are easy to avoid. First, enter balls, not overs, in the balls box: 10 overs is 60 balls. Second, use the target as the winning total, not the first-innings total: if the first team scored 199, the target is 200. Third, update the numbers every few overs: a required rate from ten overs ago tells you nothing about the current pressure.
Fans love this number because it turns a vague feeling into a fact. Instead of saying the chase looks hard, you can say the team needs 8 runs an over with 5 wickets left. Use this calculator while watching a match to follow the chase ball by ball. It makes every over more interesting, because you always know exactly what the batting team needs.
Versión en español: https://ilmhunt.com/calculadora-run-rate-requerido-criquet/