.nrr-calculator-wrapper {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
max-width: 800px;
margin: 0 auto;
color: #333;
line-height: 1.6;
}
.nrr-calc-box {
background: #f0f4f8;
border: 2px solid #0056b3;
border-radius: 8px;
padding: 30px;
margin-bottom: 40px;
box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.nrr-title {
text-align: center;
color: #0056b3;
margin-bottom: 25px;
font-size: 24px;
font-weight: 700;
}
.nrr-flex-row {
display: flex;
flex-wrap: wrap;
gap: 20px;
margin-bottom: 20px;
}
.nrr-col {
flex: 1;
min-width: 250px;
}
.nrr-section-label {
font-weight: bold;
color: #2c3e50;
margin-bottom: 10px;
border-bottom: 2px solid #ddd;
padding-bottom: 5px;
display: block;
}
.form-group {
margin-bottom: 15px;
}
.form-group label {
display: block;
margin-bottom: 5px;
font-size: 14px;
font-weight: 600;
}
.form-group input {
width: 100%;
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 16px;
}
.form-group .help-text {
font-size: 12px;
color: #666;
margin-top: 4px;
}
.calc-btn {
display: block;
width: 100%;
background: #0056b3;
color: white;
border: none;
padding: 15px;
font-size: 18px;
font-weight: bold;
border-radius: 4px;
cursor: pointer;
transition: background 0.3s;
}
.calc-btn:hover {
background: #004494;
}
.result-box {
margin-top: 25px;
padding: 20px;
background: #fff;
border: 1px solid #ddd;
border-radius: 4px;
text-align: center;
display: none;
}
.nrr-value {
font-size: 32px;
font-weight: 800;
color: #0056b3;
}
.nrr-breakdown {
font-size: 14px;
color: #555;
margin-top: 10px;
}
.positive-nrr { color: #28a745; }
.negative-nrr { color: #dc3545; }
/* Article Styling */
.nrr-article h2 { color: #2c3e50; margin-top: 30px; font-size: 22px; }
.nrr-article h3 { color: #34495e; margin-top: 20px; font-size: 18px; }
.nrr-article ul { margin-bottom: 20px; padding-left: 20px; }
.nrr-article li { margin-bottom: 8px; }
.formula-box {
background: #eef;
padding: 15px;
border-left: 4px solid #0056b3;
font-family: monospace;
margin: 20px 0;
}
function calculateNRR() {
// Get inputs
var runsScored = parseFloat(document.getElementById('runsScored').value);
var oversFacedInput = parseFloat(document.getElementById('oversFaced').value);
var runsConceded = parseFloat(document.getElementById('runsConceded').value);
var oversBowledInput = parseFloat(document.getElementById('oversBowled').value);
// Validation
if (isNaN(runsScored) || isNaN(oversFacedInput) || isNaN(runsConceded) || isNaN(oversBowledInput)) {
alert("Please enter valid numbers for all fields.");
return;
}
if (oversFacedInput === 0 || oversBowledInput === 0) {
alert("Overs cannot be zero.");
return;
}
// Helper function to convert cricket overs (e.g., 19.4) to decimal overs (19.666)
function convertOvers(oversVal) {
var wholeOvers = Math.floor(oversVal);
// Extract the decimal part properly (avoiding floating point errors)
var balls = Math.round((oversVal – wholeOvers) * 10);
// Validate balls (cannot be more than 5 in cricket notation .6 becomes next over)
if (balls >= 6) {
// If user enters 19.6, treat as 20.0, though strictly invalid input
wholeOvers += Math.floor(balls / 6);
balls = balls % 6;
}
return wholeOvers + (balls / 6);
}
var decimalOversFaced = convertOvers(oversFacedInput);
var decimalOversBowled = convertOvers(oversBowledInput);
// Calculate Run Rates
var runRateFor = runsScored / decimalOversFaced;
var runRateAgainst = runsConceded / decimalOversBowled;
// Calculate NRR
var nrr = runRateFor – runRateAgainst;
// Update UI
var resultBox = document.getElementById('resultDisplay');
var nrrValueEl = document.getElementById('nrrValue');
var breakdownEl = document.getElementById('nrrBreakdown');
resultBox.style.display = 'block';
// Format NRR to 3 decimal places (standard in cricket)
var formattedNRR = (nrr > 0 ? "+" : "") + nrr.toFixed(3);
nrrValueEl.textContent = formattedNRR;
// Color coding
if (nrr >= 0) {
nrrValueEl.className = "nrr-value positive-nrr";
} else {
nrrValueEl.className = "nrr-value negative-nrr";
}
breakdownEl.innerHTML =
"Team Run Rate: " + runRateFor.toFixed(3) + "" +
"Opponent Run Rate: " + runRateAgainst.toFixed(3);
}
Cricket Net Run Rate (NRR) Calculator
Team Performance (Runs Scored)
Use standard cricket notation (e.g., 20.3). If All Out, enter full quota (e.g. 20 or 50).
Opponent Performance (Runs Conceded)
Overs bowled by your team against opponents.
Your Net Run Rate
0.000
How to Calculate Net Run Rate (NRR) in Cricket Tournaments
Net Run Rate (NRR) is the preferred method for ranking teams with equal points in limited-overs cricket tournaments, such as the ICC World Cup, T20 World Cup, and leagues like the IPL. It serves as a tie-breaker by measuring a team's winning margin relative to their losing margin throughout a competition.
The Net Run Rate Formula
The calculation essentially compares the average runs a team scores per over against the average runs they concede per over.
NRR = (Total Runs Scored / Total Overs Faced) – (Total Runs Conceded / Total Overs Bowled)
This can be simplified as:
NRR = Average Run Rate For – Average Run Rate Against
Step-by-Step Calculation Guide
To manually calculate NRR, follow these steps:
- Calculate Run Rate For: Sum up all runs scored by the team across all matches. Sum up all overs faced. Divide total runs by total overs.
- Calculate Run Rate Against: Sum up all runs scored by opponents against the team. Sum up all overs bowled by the team. Divide opponent runs by overs bowled.
- Subtract: Deduct the "Run Rate Against" from the "Run Rate For".
Important Rules and Edge Cases
- The "All Out" Rule: This is the most critical rule in NRR calculation. If a team is bowled out (all out) before completing their full quota of overs (e.g., bowled out in 35 overs in a 50-over match), the calculation uses the full quota of overs (50 overs) rather than the actual overs faced. This penalizes the team for losing all wickets.
- Overs Notation: Cricket overs are counted in base-6. An input of "10.3" means 10 full overs and 3 balls. For calculation purposes, this must be converted to a decimal. 3 balls is 3/6 of an over, or 0.5. Thus, 10.3 overs = 10.5 in the formula.
- Abandoned Matches: Matches that are abandoned without a result usually do not count towards the NRR calculation.
Real-World Example
Imagine Team A has played 2 matches:
- Match 1: Scored 180 runs in 20 overs. Conceded 160 runs in 20 overs.
- Match 2: Scored 150 runs in 20 overs. Conceded 190 runs in 20 overs.
Total Runs Scored: 180 + 150 = 330
Total Overs Faced: 20 + 20 = 40
Run Rate For: 330 / 40 = 8.25
Total Runs Conceded: 160 + 190 = 350
Total Overs Bowled: 20 + 20 = 40
Run Rate Against: 350 / 40 = 8.75
Final NRR: 8.25 – 8.75 = -0.500
Why NRR Can Change Drastically
Because NRR is cumulative, a single heavy defeat can severely impact a team's standing. Conversely, chasing down a small target in very few overs can boost the NRR significantly, as the denominator (overs faced) remains small while the runs remain constant.