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CALCULATOR CATEGORY

Business

Explore Business calculators and related business decision models on Martzine.

What you will find here

The Business calculator area groups the calculations used for recurring Business decisions. Each page explains the model, shows the working inputs and connects the result to related tools and longer form guidance.

Business calculators

Use this category when you already know the business question but need a consistent way to quantify it. Start with the closest calculator, check the definitions and move to the related pages when the decision requires more context.

Keep calculations comparable by using the same period, unit basis and definitions. A category page is an index into the models, not a substitute for reviewing the assumptions behind a result.

How to choose the right calculator

Begin with the decision, not the metric. Identify what you are trying to change, compare or validate, then select the calculator whose inputs match the question. When two models look similar, review their formula and output definition before choosing between them.

The category also includes variations for more specific searches. Those pages exist when the user intent changes materially, so long form explanations can address a narrower business context without turning one page into an overloaded reference.

SUBCATEGORIES

Narrow the library by subcategory.

Start with the broad category when the decision is still open. Choose a subcategory when you already know the part of the work that needs attention.

SUBCATEGORY

Customer Economics

Explore Customer Economics calculators and related business decision models on Martzine.

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SUBCATEGORY

Growth

Explore Growth calculators and related business decision models on Martzine.

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SUBCATEGORY

Operations

Explore Operations calculators and related business decision models on Martzine.

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SUBCATEGORY

Pricing

Explore Pricing calculators and related business decision models on Martzine.

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SUBCATEGORY

Profitability

Explore Profitability calculators and related business decision models on Martzine.

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CALCULATOR LIBRARY

Business calculators

Open the calculator that matches the decision you are reviewing. Focused sub-calculators are included where the broader model has a recurring narrower question.

Calculator

Break Even Calculator

Estimate the unit sales needed to cover fixed costs. The model uses one selling price and one variable cost per unit. It suits a single product or a simplified offer…

Calculator

Break Even Clients Calculator

Break Even Clients uses monthly fixed costs, average client revenue.

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Break Even Sales Calculator

Break Even Sales uses fixed costs, contribution margin.

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Business ROI Calculator

Calculate simple return on investment from investment cost and value returned. The output expresses the gain or loss relative to cost. It does not adjust for the timing of returns…

Calculator

Contribution Margin Calculator

Find the share of a selling price left after variable cost. Use contribution to assess whether each sale can help cover fixed costs.

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Customer Acquisition Cost (CAC) Calculator

Customer acquisition cost (CAC) measures the marketing and sales spend associated with each new customer in the period you define. Enter paying customers rather than clicks or form submissions when…

Calculator

Customer Lifetime Value (LTV) Calculator

Estimate the gross-margin contribution a customer may generate across the lifespan entered. The model combines average order value, purchases per year, gross margin and years. It is a simplified estimate,…

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Customer Payback Period Calculator

Estimate the months needed to recover acquisition cost from monthly gross margin per customer. This is a steady monthly contribution model.

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Customer Payback Revenue Calculator

Customer Payback Revenue uses customer acquisition cost, monthly gross margin.

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Customer Revenue per Month Calculator

Monthly customer revenue divides the selected month’s revenue by the customers represented by that revenue.

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Freelance Platform Fee Calculator

Freelance Platform Fee uses client payment, platform fee.

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Freelance Profit Calculator

Freelance Profit uses revenue, business expenses.

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Freelance Project Margin Calculator

Compare project revenue with direct delivery cost to measure the modeled margin. Add any missing overhead separately before treating it as net profit.

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Freelance Project Rate Calculator

Freelance Project Rate uses estimated project hours, target hourly rate, contingency buffer.

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Freelancer Profit Calculator

Freelancer Profit uses freelance revenue, business expenses.

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Gross Margin Calculator

Gross margin measures the share of revenue left after cost of goods sold (COGS). Enter revenue and the corresponding direct cost total to review product economics. Operating expenses are outside…

Calculator

Inventory Turnover Calculator

Compare COGS (cost of goods sold) with average inventory to estimate how often the inventory value turns over in the period.

Calculator

LTV to CAC Ratio Calculator

LTV to CAC Ratio uses customer lifetime value, customer acquisition cost.

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Markup Calculator

Markup measures how far a selling price sits above the cost entered. Use it to check an existing quote or compare proposed prices. The cost denominator makes markup different from…

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Net Margin Calculator

Convert your reported net profit into a percentage of revenue. Use this when you need to compare profitability across periods with different sales volumes.

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Net Profit Calculator

Net Profit uses gross profit, operating expenses.

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Operating Expense Ratio Calculator

Operating Expense Ratio uses operating expenses, revenue.

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Operating Margin Calculator

Compare operating profit with revenue to assess the return from normal operations. Keep finance and tax items consistent with the operating profit figure in your accounts.

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Pricing Calculator

Pricing uses unit cost, target margin, commercial buffer.

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Profit Margin Calculator

Profit margin shows the percentage of sales revenue left after the costs you enter. Use this page to review a quote, a product line or a reporting period. Match revenue…

Calculator

Project Price Calculator

Project Price uses estimated hours, hourly rate, scope buffer %.

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Retainer Pricing Calculator

Retainer Pricing uses monthly hours, target hourly rate.

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Revenue Growth Calculator

Compare ending revenue with starting revenue to measure the percentage change. Use equal reporting periods and a consistent definition of sales.

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Revenue Growth Target Calculator

Revenue Growth Target uses target revenue, average deal value.

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Service Capacity Calculator

Service Capacity uses available hours, utilization %, weeks.

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Target Margin Pricing Calculator

Target Margin Pricing uses unit cost, target margin %, buffer %.

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Target Profit Calculator

Target Profit uses target profit, profit margin.

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Target Profit Sales Calculator

Target Profit Sales uses target profit, contribution margin %.

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Target Revenue Calculator

Target Revenue uses revenue target, average deal value.

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Unit Economics Calculator

Unit Economics uses revenue, units sold, variable cost.

CONTENT AND CORRECTIONS

Martzine Editorial Team

Martzine’s editorial work is led by Bilal Ahmad, founder of Martzine, with support from his team across content, research and technical development. Team members contribute according to the subject and assigned work, from practical explanations and source research to tool functionality and website improvements.

Martzine publishes and maintains the tools, calculators, references, resources and articles on this website. Our editorial work covers clear instructions, calculation assumptions, useful sources and corrections when an issue is identified.

A result depends on the inputs and the limits described on its page. If you notice a calculation error, broken feature, unclear explanation or information that needs correction, please send us the page link, the details and any supporting reference. We will assess the report and correct confirmed issues as soon as practical.

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