Social Media Reach Calculator

Step-by-Step Guide

1. 1Select a Platform: Click the platform that matches your content channel. The engagement rate, reach rate, and impression multiplier automatically update to reflect that platform's documented averages. You can override the engagement rate manually using the slider.
2. 2Enter Your Follower Count: Type your total follower or subscriber count. The calculator accepts values from 1 to 1 billion. Results update in real time as you type with a 150ms debounce.
3. 3Adjust Engagement and Share Rates: Use the sliders to set your expected engagement rate, average shares, and average saves as percentages. The platform average is shown as a reference on the engagement slider — adjust upward if your content typically outperforms the average, or downward for new accounts.
4. 4Configure Content and Audience Settings: Select your content type (Reels and video earn higher multipliers), audience quality (poor to excellent), and posting frequency. Posting frequency affects the estimated monthly audience growth calculation.
5. 5Toggle Paid Promotion: If you plan to boost the post, enable Paid Promotion and set the reach multiplier. A 2× multiplier means paid distribution will double your organic reach estimate. The organic vs paid comparison bar chart appears automatically.
6. 6Read Results and Export: Review reach, impressions, engagement, shares, saves, growth, and performance score. Export as TXT, CSV, or a print-ready PDF for client reports, copy the full report to clipboard, or share a summary directly. Save up to 20 calculations to browser history.
7. 7Compare Two Campaigns: Run a calculation, click 'Compare as A', then adjust your inputs and click 'Compare as B' to see both campaigns' reach, engagement, impressions, and performance score side by side.

Key Features

• ✓9 platforms: Instagram, Facebook, TikTok, LinkedIn, YouTube, X, Pinterest, Threads, Snapchat
• ✓Platform-specific reach rates, engagement defaults, and growth estimates
• ✓Real-time results with 150ms debounced updates
• ✓Content type multipliers (Image, Carousel, Video, Reel, Short, Story, Live)
• ✓Audience quality adjustment (Poor → Excellent)
• ✓Posting frequency — affects monthly growth estimate
• ✓Paid promotion toggle with 1–10× reach multiplier
• ✓Organic vs paid comparison bar display
• ✓6 result metrics: Reach, Impressions, Engagement, Shares, Saves, Growth
• ✓Performance score 0–100 with colour-coded level
• ✓Platform benchmark reference table — click to switch platform
• ✓Export report as TXT, CSV, or print-ready PDF with timestamp
• ✓Copy full report to clipboard or share a summary in one click
• ✓Side-by-side comparison mode for two campaigns
• ✓Save up to 20 calculations to local browser history
• ✓All processing runs locally — no data leaves your browser

Pro Tips

• 💡Use 'Good' audience quality as your starting point and adjust based on your account's historical engagement-to-follower ratio. If your engagement rate consistently exceeds the platform average, set audience quality to Excellent — your real audience is more active than the benchmark.
• 💡Reels and short-form video earn the highest content multipliers because platforms actively promote them to non-followers. If your goal is reach growth rather than engagement with existing followers, prioritise video formats and use the calculator to quantify the reach difference.
• 💡The estimated audience growth figure uses your posting frequency setting — increase it to Daily to see how consistent posting compounds the monthly follower growth estimate. Frequency matters most for accounts under 10,000 followers where the algorithm weighs posting cadence more heavily.
• 💡When planning paid amplification, use the organic estimate as your baseline and the paid estimate as the ceiling. Real paid performance depends on audience targeting quality, creative resonance, and bid competition — the calculator's multiplier is a conservative planning estimate.
• 💡Compare your actual platform analytics against the calculator's estimates each month. If your real reach is consistently below the estimate, set audience quality to Poor or Average and investigate follower quality. If consistently above, your content is outperforming average and you should set quality to Excellent for future planning.

Common Mistakes to Avoid

• ✕Don't use total followers as your expected reach without applying an audience quality adjustment. Accounts that purchased followers or grew through giveaways often have 30–50% inactive followers — entering the inflated follower count at Excellent quality will significantly overstate your realistic reach.
• ✕Don't confuse reach with impressions when reporting to clients or stakeholders. Reach is unique users; impressions count all views including repeat views by the same person. Presenting impressions as reach inflates the perceived audience size and can erode trust when clients check against platform data.
• ✕Don't set your engagement rate to the platform maximum when planning. Campaigns rarely sustain peak engagement across all posts. A realistic planning rate is 80–90% of your historical average, not your best-performing post's rate.
• ✕Don't treat estimated audience growth as a guarantee. The monthly growth figure reflects a statistical tendency — not a prediction. Viral content, algorithmic changes, seasonal trends, and competitor activity all affect real follower growth independently of the baseline assumptions.
• ✕Don't plan paid amplification based solely on reach multiplier. A 3× paid multiplier means paid distribution reaches 3× more people, but those additional people are cold-audience users with significantly lower engagement rates than your organic followers.