CAC Calculator — Customer Acquisition Cost Tool

Calculate screen width and height from diagonal size and aspect ratio. Convert between inches and centimeters for displays, TVs, and monitors with instant dimension calculations.

Calculate DPI (dots per inch), image dimensions, and print sizes. Convert between pixels and physical dimensions for printing and displays.

Convert seconds to HH:MM:SS time format instantly with precise calculations and easy-to-read formatting.

Generate time-based one-time passwords from a TOTP secret key. Enter your base32 secret, choose a period and digit length, and get the current and next codes with a live countdown timer. Useful for testing and debugging 2FA integrations.

Calculate the information-theoretic bit entropy of any password or API key. Detects character set pools automatically, shows the total number of possible combinations, and estimates crack time across five attack scenarios from rate-limited web logins to GPU cracking clusters.

Format, validate, and inspect JSON Lines (JSONL) and NDJSON files. Validates each line individually, reports parse errors by line number, outputs compact JSONL or a pretty-print preview, and lets you download the cleaned file.

Generate Zod validation schema code from a JSON sample object. Infers z.string(), z.number(), z.boolean(), z.array(), z.object(), and z.null() types automatically. Handles nested objects, arrays of objects with optional field detection, and outputs copy-ready TypeScript with import and z.infer type alias.

Check TLS protocol version compatibility and cipher suite strength ratings against current best practices. Supports IANA and OpenSSL cipher names — rates each suite as Strong, Weak, or Deprecated and explains why.

Generate a unique webhook URL and receive live HTTP requests. Inspect request headers, method, body, and timestamp in real time. No account required — payloads are stored temporarily for debugging.

Design and compare SaaS pricing tiers visually. Define plan names, monthly and annual prices, feature inclusions, and CTA text — then preview a live pricing table, copy it as embeddable HTML, and estimate MRR with a conversion rate and plan distribution calculator.

Calculate Annual Contract Value from deal size and term length, and compare multiple deal structures side by side with per-seat and monthly normalized revenue.

Calculate how many months it takes to recover your customer acquisition cost from gross profit. Enter CAC, average MRR per customer, and gross margin to get your payback period with industry benchmark comparison across SaaS segments.

Calculate MoM, CAGR, and period-over-period revenue growth rates from a series of revenue figures. Get a visual growth rate chart, summary metrics, and a 3/6/12/24-month forward projection at your average or custom growth rate.

Calculate your free trial conversion rate and see the revenue impact of conversion improvements. Enter trial signups, converted customers, and average MRR to quantify how +1%, +5%, or +10% conversion gains translate to additional MRR and ARR.

Calculate your Net Promoter Score from promoter, passive, and detractor survey response counts. Get your NPS score (-100 to +100), category rating, and side-by-side benchmark comparison against 10 industries.

Calculate your Rule of 40 score by adding YoY revenue growth rate and EBITDA margin. See your tier (Elite / Healthy / Below Average), a visual gauge with the 40-point threshold, benchmark comparison against public SaaS companies, and a what-if table showing what growth or margin improvement is needed to reach 40, 50, or 60.