Unit Economics Calculator — MindfulClicks

MindfulClicks · SaasRise Framework

Unit Economics
Calculator

The complete B2B SaaS unit economics engine. Calculate CAC, LTV, Magic Number, GM-adjusted payback, and benchmark every channel — so you know exactly where to scale and where to cut.

Enter your monthly figures. All calculations update instantly.

Total sales & marketing spend
Net new accounts acquired
Avg revenue per account
Revenue minus COGS
% of accounts who cancel
Include expansion (>100% = growth)
Current monthly recurring revenue
Net new ARR added this quarter
Total S&M spend last quarter

Your core unit economics, including gross-margin-adjusted metrics.

CAC
Blended cost per customer
LTV
Customer lifetime value
GM-Adjusted LTV
After gross margin
Avg Lifespan
Months retained
Payback Period
GM-adjusted months
LTV:CAC Ratio
GM LTV:CAC
S&M % of Revenue
Efficiency ratio
Magic Number
NRR-Adjusted LTV
With expansion revenue
ARR
Annual run rate
New MRR / Month
From new customers
LTV:CAC
GM LTV:CAC
Benchmark (6:1)
6.0×

Automated benchmarks against B2B SaaS best practices.


Set your targets and see the maximum CAC you can afford.

Max CAC — by LTV ratio
GM-LTV ÷ target ratio
Max CAC — by payback
GM-ARPA × target months
Conservative max CAC
Lower of the two constraints

See how optimising one variable transforms your economics. Hover or tap ⓘ for formulas.


Break down CAC by channel. Totals sync to your blended inputs above.

ChannelS&M Spend ($)New CustomersChannel CAC% of Spendvs Target

CACS&M ÷ New Customers
Lifespan1 ÷ Churn%
LTVARPA × Lifespan
GM-LTVLTV × GM%
PaybackCAC ÷ (ARPA × GM%)
LTV:CACLTV ÷ CAC
Magic #New Q ARR ÷ Prior Q S&M
NRR-LTVARPA × NRR^n sum
S&M %S&M ÷ MRR × 100

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Limon Ghosh

PPC/SEO Consultant Expert