What you will find here
The Finance calculator area groups the calculations used for recurring Finance decisions. Each page explains the model, shows the working inputs and connects the result to related tools and longer form guidance.
Finance 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.
SUBCATEGORYCash Management
Explore Cash Management calculators and related business decision models on Martzine.
Browse subcategory ↗SUBCATEGORYDebt
Explore Debt calculators and related business decision models on Martzine.
Browse subcategory ↗SUBCATEGORYInvestment
Explore Investment calculators and related business decision models on Martzine.
Browse subcategory ↗SUBCATEGORYPlanning
Explore Planning calculators and related business decision models on Martzine.
Browse subcategory ↗SUBCATEGORYProfitability
Explore Profitability calculators and related business decision models on Martzine.
Browse subcategory ↗
CALCULATOR LIBRARY
Finance 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
Cash Flow Calculator
Cash Flow uses cash inflows, cash outflows.
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Cash Runway Calculator
Cash Runway uses cash available, monthly net burn.
Calculator
Compound Interest Calculator
Compound Interest uses starting amount, annual rate, years.
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Debt To Income Calculator
Debt To Income uses monthly debt payments, gross monthly income.
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Debt to Income Ratio Calculator
Debt to Income Ratio uses monthly debt payments, monthly income.
Calculator
Future Value Calculator
Future Value uses current value, annual growth, years.
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Gross Profit Calculator
Gross Profit uses revenue, cogs.
Calculator
Inflation Impact Calculator
Inflation Impact uses current amount, annual inflation, years.
Calculator
Loan Payment Calculator
Calculate the monthly payment for a fixed-rate amortising loan. Check the rate and years against the actual lending agreement.
Calculator
Monthly Burn Rate Calculator
Monthly Burn Rate uses starting cash, ending cash, months.
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Monthly Cash Runway Calculator
Monthly Cash Runway uses available cash, monthly burn.
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Monthly Savings Goal Calculator
Monthly Savings Goal uses savings goal, current savings, months remaining.
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Net Cash Flow Calculator
Net Cash Flow uses cash inflow, cash outflow.
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Net Profit Calculator
Net Profit uses gross profit, operating expenses.
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Savings Goal Calculator
Savings Goal uses savings goal, current savings, months to goal.
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Simple Interest Calculator
Simple Interest uses principal, annual rate, years.