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Cost per lead & CAC calculator.

Enter your ad spend, leads, and funnel rates. Get your CPL, cost per meeting, CAC, ROAS, LTV:CAC, and payback — each scored against B2B benchmarks as healthy, watch, or bleeding.

TL;DR

Your cost per lead means nothing on its own — a $30 lead that never books a meeting is worse than a $200 lead that closes a $50k deal. What actually decides whether paid acquisition makes money is the chain: CPL → cost per meeting → CAC → LTV:CAC → payback. This calculator computes all of them from a handful of inputs and scores each against B2B norms.

The healthy targets to anchor on: blended B2B CPL roughly $40–$200, LTV:CAC ≥ 3×, and CAC payback under 12 months. If any of those flash red, the leak is almost always in targeting, the offer/landing page, or follow-up speed — not the budget. Pouring more spend into a funnel that's already bleeding just loses money faster.

Total you put into paid channels per month.
Or leave blank and enter your cost-per-lead instead.
Use this if you don't have a clean lead count.
First-year contract value or customer LTV.
What share of leads become a booked meeting.
What share of meetings become a closed deal.

Enter monthly ad spend and either a lead count or a cost-per-lead to start.

Cost Per Lead & CAC → Division50

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How the math works — and the benchmarks behind each band

Cost per lead is spend ÷ leads (or whatever you enter directly). We treat a blended B2B CPL of $40–$200 as the healthy band, $200–$300 as a watch zone, and above $300 as bleeding — though the true ceiling rises with deal size. Cost per meeting walks your lead-to-meeting rate forward: under ~$300 per booked meeting is healthy, over ~$1,000 is bleeding. CAC walks one step further — through your meeting-to-deal rate — to spend ÷ deals won.

LTV:CAC compares the value of a customer to what it cost to win them — 3× or better is healthy, under 1.5× is losing money. CAC payback is how many months of customer value it takes to earn the acquisition cost back; under 12 months keeps acquisition self-funding, over 18 is a cash drag. ROAS and ROI close the loop on whether the whole channel is in the black. The two conversion rates — lead→meeting (healthy ≥ 8%) and meeting→deal (healthy ≥ 20%) — are where most funnels actually leak.

Benchmark bands are conservative B2B norms blended across paid search, paid social, and content — directional, not absolute. This calculator runs entirely in your browser and stores nothing you type; the optional email step only sends an address if you ask for the report.

Frequently asked questions

What is a good cost per lead (CPL) for B2B?
There's no single number — it scales with deal size — but blended B2B CPL typically lands between $40 and $200, with paid search usually higher than content or organic social. A $30 lead can be terrible if it never converts, and a $250 lead can be a bargain if it closes a $50k contract. The number that matters isn't CPL in isolation — it's CPL relative to your meeting rate, close rate, and deal value, which is exactly what this calculator benchmarks together. If your CPL is above ~$300 with weak downstream conversion, the funnel is bleeding.
What is a good CAC (customer acquisition cost) for B2B?
The healthiest way to judge CAC isn't an absolute dollar figure — it's two ratios. First, LTV:CAC should be at least 3:1 (you earn at least three dollars of customer value for every dollar of acquisition cost); below 1.5:1 you're effectively losing money to grow. Second, CAC payback should be under 12 months — over 18 months and CAC becomes a cash-flow drag that starves the rest of the business. A 'good' CAC is whatever keeps both of those green at the same time.
How do you calculate cost per lead and CAC?
Cost per lead = total ad spend ÷ number of leads. Customer acquisition cost = total spend ÷ number of new customers won from that spend. To get CAC you walk the funnel: leads × lead-to-meeting rate = meetings, meetings × meeting-to-deal rate = deals, then spend ÷ deals = CAC. This tool does all of that instantly and then scores each number — CPL, cost per meeting, CAC, ROAS, LTV:CAC, and payback — against B2B benchmark ranges so you can see exactly where the math breaks.
Why is my cost per lead so high?
High CPL almost always traces to one of three leaks: targeting (you're paying to reach the wrong people), offer and landing page (the click happens but the form doesn't), or channel mismatch (running brand-style creative on a bottom-funnel keyword, or vice versa). The fix is rarely 'spend more' — it's tightening the audience, sharpening the offer, and matching message to intent. Above-benchmark CPL combined with a weak lead-to-meeting rate is the single most common reason paid budgets get pulled.
What's a good LTV:CAC ratio and CAC payback period?
Aim for LTV:CAC of 3:1 or better and CAC payback under 12 months. A 3:1 ratio means there's enough margin to cover the cost of sales, support, and overhead while still funding growth. Payback under a year keeps acquisition self-funding rather than burning runway. If your ratio is under 1.5:1 or payback stretches past 18 months, you don't have a traffic problem — you have a unit-economics problem, and pouring more budget in just loses money faster.
Is this CPL / CAC calculator free?
Yes — completely free, no signup required. Everything runs in your browser; the numbers you type never leave your device. The only optional step is entering an email if you want the full B2B benchmark report (CPL and CAC ranges broken down by channel and industry) sent to you. Want a human to look at your actual funnel and tell you where the money's leaking? Book a free 30-minute strategy call.
Free cost per lead & CAC calculator (B2B benchmarks) — Division50