Profit, Break-Even and Growth Calculators

Once the work is under way, is it actually working? These calculators answer the questions that decide that: how many units before the fixed costs are covered, what advertising return you need just to stand still, what a customer is worth over their lifetime, and how many months of cash are left at the current burn.

Every Profit & Growth tool

Break-Even Calculator

Units and revenue needed to cover fixed costs, and to hit a profit target.

Break-Even ROAS Calculator

The ROAS multiple at which an ad campaign stops losing money.

CAC Calculator

Acquisition cost, payback period and the LTV to CAC ratio.

Customer LTV Calculator

Lifetime value from spend, frequency, margin and churn.

Double Discount Calculator

What two stacked discounts really come to at the checkout.

Free Shipping Threshold Calculator

The order value at which free shipping still makes money.

MRR to ARR Calculator

MRR to ARR, revenue per account and a twelve-month projection.

Margin vs Markup Calculator

Convert between gross margin and markup on any unit cost.

Rent Per Square Foot Calculator

Convert commercial rent into cost per square foot and per person.

Runway Calculator

Months of cash left from balance, burn and revenue growth.

SaaS Spend Auditor

Total your software subscriptions and see the cost per head.

Break-even

The break-even calculator divides fixed costs by the contribution each unit makes — price minus variable cost — to give the number of sales at which you stop losing money. It also shows the revenue at that point and, if you enter a target profit, the volume needed to reach it. The break-even ROAS calculator applies the same logic to advertising: given your margin, it gives the return on ad spend below which every sale from a campaign costs more than it earns.

Margin, markup and discounts

Margin versus markup is one calculator because the confusion between them is one problem: a 25% markup is a 20% margin, and pricing by one while reporting by the other is how profit vanishes. The double-discount calculator shows why "20% off, then a further 15% off" is not 35% off, and the free-shipping threshold calculator finds the order value at which absorbing delivery cost still leaves your target margin intact.

Property

Lease per square foot converts a quoted rent into a comparable figure across spaces of different sizes and payment periods, and back into a monthly cash cost, so two premises can be compared like for like.

Subscription businesses

Customer lifetime value multiplies average revenue per customer by margin and expected lifetime, which the calculator derives from churn. SaaS CAC divides sales and marketing spend by customers acquired and compares it with LTV — a ratio under three-to-one is the usual warning sign. MRR to ARR annualises monthly recurring revenue and shows the effect of growth and churn month by month. Runway divides cash on hand by net monthly burn and gives a date, not just a number of months. The SaaS spend audit lists every subscription your business pays for, annualises the total and shows which ones cost the most per seat.

Estimates you can argue with

Every result shows its formula and inputs, because these are the numbers that end up in a board deck or a bank conversation, and you will need to defend them. Nothing you enter is sent to a server; all of it runs in your browser.