function calculateIgRate() {
// Inputs
var followers = document.getElementById('igFollowers').value;
var likes = document.getElementById('igAvgLikes').value;
var comments = document.getElementById('igAvgComments').value;
var resultBox = document.getElementById('igResult');
var errorBox = document.getElementById('igError');
// Validation
if (followers === "" || likes === "" || comments === "" || followers <= 0) {
errorBox.style.display = 'block';
resultBox.style.display = 'none';
return;
}
// Parsing
var numFollowers = parseFloat(followers);
var numLikes = parseFloat(likes);
var numComments = parseFloat(comments);
if (isNaN(numFollowers) || isNaN(numLikes) || isNaN(numComments)) {
errorBox.style.display = 'block';
resultBox.style.display = 'none';
return;
}
errorBox.style.display = 'none';
// 1. Calculate Engagement Rate ((Likes + Comments) / Followers) * 100
var totalEngagement = numLikes + numComments;
var engagementRate = (totalEngagement / numFollowers) * 100;
// 2. Base Calculation (Industry Standard: ~$10 per 1,000 followers)
// This is a baseline "CPM" style calculation.
var baseRate = (numFollowers / 1000) * 10;
// 3. Apply Engagement Multiplier
// Industry average engagement is often cited around 1-3%.
// If engagement is higher, the influencer commands a premium.
var multiplier = 1.0;
if (engagementRate = 1 && engagementRate = 3 && engagementRate = 6) {
multiplier = 1.6; // Viral/Super high engagement premium
}
var adjustedPostRate = baseRate * multiplier;
// 4. Calculate Format Variations
// Stories are typically priced lower due to 24h lifespan (approx 50-60% of post rate)
// Reels/Videos typically command a premium due to production effort (approx 1.5x post rate)
var storyRate = adjustedPostRate * 0.6;
var reelRate = adjustedPostRate * 1.5;
// Rounding helpers
function formatCurrency(num) {
return '$' + num.toLocaleString(undefined, {minimumFractionDigits: 0, maximumFractionDigits: 0});
}
// If values are small (micro influencers), show decimals
function formatCurrencyPrecise(num) {
return '$' + num.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
}
var displayPost = adjustedPostRate > 100 ? formatCurrency(adjustedPostRate) : formatCurrencyPrecise(adjustedPostRate);
var displayStory = storyRate > 100 ? formatCurrency(storyRate) : formatCurrencyPrecise(storyRate);
var displayReel = reelRate > 100 ? formatCurrency(reelRate) : formatCurrencyPrecise(reelRate);
// Update DOM
document.getElementById('resEngagement').innerText = engagementRate.toFixed(2) + '%';
document.getElementById('resPostRate').innerText = displayPost;
document.getElementById('resStoryRate').innerText = displayStory;
document.getElementById('resReelRate').innerText = displayReel;
resultBox.style.display = 'block';
}
How to Calculate Instagram Post Rates
Determining the correct pricing for Instagram sponsored content is one of the biggest challenges for both creators and brands. Unlike traditional advertising with fixed rate cards, influencer marketing pricing fluctuates based on follower count, engagement quality, and content format. This guide explains the logic behind the calculator above and how to manually estimate your worth.
The "$10 per 1,000 Followers" Rule
The most common baseline formula used in the industry is the $10 per 1,000 followers rule (or $100 per 10,000 followers). This provides a starting point for negotiation.
Nano Influencer (1k – 10k followers): $10 – $100 per post.
Micro Influencer (10k – 50k followers): $100 – $500 per post.
Mid-Tier Influencer (50k – 500k followers): $500 – $5,000 per post.
However, follower count is only half the story. If a creator has 100,000 followers but only gets 100 likes per post, their conversion value is low, and the rate should be discounted.
The Engagement Rate Multiplier
Engagement rate is the percentage of your audience that interacts with your content. It is calculated as:
Formula: ((Likes + Comments) ÷ Total Followers) × 100
The calculator above adjusts the base price according to engagement benchmarks:
1% – 3%: Average engagement (Standard Rate).
3% – 6%: High engagement (1.3x Premium).
6%+: Viral engagement (1.6x – 2.0x Premium).
Pricing by Content Format
Not all content requires the same effort or delivers the same value. The calculator provides estimates for three distinct formats:
Static Post: The standard feed post (photo or carousel). This is the baseline rate.
Instagram Story: Stories vanish after 24 hours. They typically cost 50% to 60% of a standard post rate due to their temporary nature, despite often having high click-through rates.
Reels / Video: Video content requires scripting, filming, and editing. Due to the higher production effort and the current algorithmic favor for Reels, these typically command 1.5x to 2x the rate of a static photo post.
Other Factors Influencing Rates
While the math provides a solid estimate, final rates often depend on:
Usage Rights: Does the brand want to run ads using your content? This requires an additional fee (usually 20-30%).
Exclusivity: Are you prohibited from working with competitors for a month? This limits your income and warrants a higher fee.
Niche: specialized niches like Finance, Tech, or B2B often command higher CPMs than General Lifestyle or Comedy.