Marketers often spend thousands on influencer campaigns without clear data on revenue or cost per acquisition. A new tutorial outlines building a Social Media ROI Calculator to track metrics across platforms like TikTok, Instagram, and YouTube. This tool calculates real ROI, CAC, and ROAS, moving teams from guesswork to data-driven decisions.

The project uses Node.js, SociaVault API, Express, and SQLite to create a dashboard. It scrapes post metrics, stores campaign data, and computes performance. The system identifies top-performing creators and platforms, addressing the reality that 60% of marketers can't prove social media ROI.

By comparing your results to industry benchmarks, the calculator highlights where you outperform or lag. Brands that track ROI are three times more likely to increase budgets. This free alternative to costly tools like Triple Whale or Northbeam offers a practical way to measure what matters and optimize spend.