Marketing Metrics Calculators Hub (2026): ROAS, CAC, CPM, CPA, CTR & LTV
Use these free calculators to compute marketing metrics instantly. Each includes the formula, a worked example, and a link to the full dictionary definition.
Currency note: Calculators default to USD; the math is identical in NPR — swap the currency symbol mentally or enter NPR values directly.
See also: Marketing Metrics Glossary Hub · Digital Marketing Dictionary
ROAS Calculator
Formula: ROAS = Revenue from Ads ÷ Ad Spend
ROAS Calculator
Enter revenue attributed to ads and total ad spend.
Example: $50,000 revenue, $10,000 spend → ROAS = 5.0× (500% return)
→ Return on Ad Spend definition · ROAS vs ROI guide below
CAC Calculator
Formula: CAC = Total Marketing Spend ÷ New Customers Acquired
CAC Calculator
Include all marketing costs: ads, tools, agency fees, content.
Example: $50,000 spend, 100 customers → CAC = $500
→ Customer Acquisition Cost definition
CPM Calculator
Formula: CPM = (Ad Spend ÷ Impressions) × 1,000
CPM Calculator
Cost per 1,000 ad impressions.
Example: $1,000 spend, 100,000 impressions → CPM = $10
CPA Calculator
Formula: CPA = Ad Spend ÷ Conversions
CPA Calculator
Cost per acquisition or conversion action.
Example: $5,000 spend, 50 conversions → CPA = $100
CTR Calculator
Formula: CTR = (Clicks ÷ Impressions) × 100
CTR Calculator
Click-through rate as a percentage.
Example: 500 clicks, 25,000 impressions → CTR = 2%
LTV Calculator
Formula: LTV = Average Order Value × Purchases per Year × Customer Lifespan (years)
LTV Calculator
Simple customer lifetime value estimate.
Example: $200 AOV × 3 orders/year × 3 years → LTV = $1,800
→ Customer Lifetime Value definition
LTV:CAC Ratio Calculator
Formula: LTV:CAC = Customer Lifetime Value ÷ Customer Acquisition Cost
LTV:CAC Ratio Calculator
Unit economics health check.
Benchmark: ≥ 3:1 is healthy for most businesses.
ROAS vs ROI
| ROAS | ROI | |
|---|---|---|
| Formula | Revenue ÷ Ad Spend | (Profit − Investment) ÷ Investment |
| Includes COGS? | No | Yes (in profit) |
| Use for | Campaign scaling | Business profitability |
→ ROI definition · MER (blended efficiency)
When to Use Each Metric (Decision Tree)
| If your goal is… | Start with | Then check |
|---|---|---|
| Scale paid ads profitably | ROAS or CPA | MER for blended efficiency |
| Evaluate unit economics | LTV:CAC | Payback period |
| Compare channel reach | CPM | CTR for engagement quality |
| Fix funnel leaks | CPA by stage | GA4 funnel exploration |
Nepal NPR Benchmarks (Directional)
| Metric | Typical Nepal range | Notes |
|---|---|---|
| Google Search CPC | NPR 15–80 | Legal/finance higher; long-tail lower |
| Meta lead CPL | NPR 150–800 | Form friction and offer quality matter |
| E-commerce ROAS | 3–5× | At 40–50% gross margin |
| Email CPM equivalent | NPR 0.50–2 per send | List hygiene critical |
Worked example (NPR): A Kathmandu D2C brand spends NPR 120,000 on Meta, generates NPR 480,000 attributed revenue → ROAS = 4×. CAC = NPR 120,000 ÷ 60 new customers = NPR 2,000. If LTV is NPR 8,000, LTV:CAC = 4:1 — healthy to scale.
Implementation Checklist
- Define one primary metric per campaign objective (don’t optimize to CTR on a sales campaign).
- Align GA4 conversion events with ad platform primary conversions.
- Review metrics weekly; change budgets only after 2-week learning windows.
- Document NPR targets in your media plan — not USD benchmarks copied from US blogs.
