Free digital marketing calculators — ROAS, CPM, CPC and freelance rates, each with steps shown.
Compute return on investment as a percentage.
Divide ad revenue by ad spend and find your break-even ROAS from profit margin.
Convert between CPM and CPC, and compute click-through rate from impressions and clicks.
Compute click-through rate from impressions and clicks.
Measure the share of visitors who convert.
Find your customer acquisition cost from spend and new customers.
Work out CPL from ad spend and lead count.
Measure how many recipients open your emails.
Compute social media engagement rate by reach or followers.
Measure customer churn and retention rate.
Calculate your site’s bounce rate from sessions.
Check if your test result is statistically significant.
Find your CPA from ad spend and conversions.
Estimate CLV from purchase value and frequency.
Turn your target salary, billable hours and taxes into the rate you should charge.
Ad budgets run on ratios — ROAS, CPM and CPC decide whether a campaign scales or bleeds. Our Digital Marketing Calculators collection covers the 15 computations marketers and freelancers reach for most: return on ad spend, CPM/CPC conversion and freelance hourly rates. Every calculator shows its steps, so you optimize with numbers — not hunches.
Use the search box above to filter the 15 tools instantly, or browse the cards. Each page carries a full explainer — the formula, worked examples with real numbers, common mistakes, and FAQs — at the CalculatorSoup depth standard.
Cite this page as: Digital Marketing Calculators, Sigma Calculator, https://sigmacalculator.net/digital-marketing-calculators/
Last updated: October 12, 2026