Cheat Sheet
Product Metrics Cheat Sheet
Every product metric worth knowing on one page — DAU/MAU, retention, activation, NRR, LTV/CAC, and 60+ more.
Consumer Metrics
Core
- DAU / MAU / WAU: unique active users per day/month/week
- Retention (D1, D7, D30): % of users returning after N days
- Activation rate: % completing first key action
- Session length + sessions per user
- K-factor (viral coefficient): invites × conversion rate
B2B SaaS Metrics
Core
- MRR / ARR: monthly / annual recurring revenue
- NRR (Net Revenue Retention): 100% = flat, 120%+ = healthy
- GRR (Gross Revenue Retention): retention before expansion
- CAC: total S&M ÷ new customers
- LTV/CAC: 3+ is healthy
- Payback period: months to recoup CAC
Marketplace Metrics
Core
- GMV: gross merchandise value
- Take rate: platform fee ÷ GMV
- Liquidity: % of supply meeting demand
- Match rate: successful transactions ÷ attempted
- Repeat purchase rate
When to Use Which
By product type
- Consumer: DAU/MAU + retention + K-factor
- B2B SaaS: NRR + LTV/CAC + payback period
- Marketplace: GMV + take rate + liquidity
- E-commerce: conversion rate + AOV + repeat rate
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