Please enter valid positive numbers. Starting count cannot be zero.
Total Growth Rate:0%
Net Followers Gained:0
Avg. Daily Growth:0
Projected Monthly Growth:0
function calculateGrowth() {
var start = document.getElementById('startFollowers').value;
var current = document.getElementById('currentFollowers').value;
var days = document.getElementById('timePeriod').value;
var errorDiv = document.getElementById('smgError');
var resultDiv = document.getElementById('smgResult');
// Parse inputs
var startVal = parseFloat(start);
var currentVal = parseFloat(current);
var daysVal = parseFloat(days);
// Validation
if (isNaN(startVal) || isNaN(currentVal) || isNaN(daysVal) || startVal < 0 || currentVal < 0 || daysVal <= 0) {
errorDiv.style.display = 'block';
resultDiv.style.display = 'none';
errorDiv.innerText = "Please enter valid positive numbers for all fields.";
return;
}
if (startVal === 0) {
errorDiv.style.display = 'block';
resultDiv.style.display = 'none';
errorDiv.innerText = "Starting follower count cannot be zero for percentage calculation.";
return;
}
// Hide error
errorDiv.style.display = 'none';
// Calculations
var netGain = currentVal – startVal;
var growthRate = (netGain / startVal) * 100;
var dailyGrowth = netGain / daysVal;
var projectedMonthly = dailyGrowth * 30;
// Display Results
document.getElementById('resGrowthRate').innerText = growthRate.toFixed(2) + "%";
document.getElementById('resNetGain').innerText = netGain.toLocaleString();
document.getElementById('resDailyGrowth').innerText = dailyGrowth.toFixed(2) + " followers/day";
document.getElementById('resProjectedMonthly').innerText = "+" + Math.round(projectedMonthly).toLocaleString() + " followers";
resultDiv.style.display = 'block';
}
Understanding Social Media Growth Rate
Tracking your follower count is one of the most fundamental aspects of social media analytics. However, looking at the raw number of followers doesn't tell the whole story. The Social Media Growth Rate is a crucial metric that measures the speed at which your account is gaining (or losing) followers over a specific period. It allows brands, influencers, and marketers to benchmark their performance relative to their audience size.
Unlike simple vanity metrics, growth rate provides context. Gaining 100 followers is significant for an account with 500 followers (20% growth), but negligible for an account with 100,000 followers (0.1% growth).
How to Calculate Social Media Growth Rate
The formula for calculating your follower growth percentage is straightforward. It compares your net gain in followers to your starting follower count.