What you can calculate in this section
Calculate liquidity, leverage, growth, return and coverage ratios with consistent inputs. Start with the result you need, then confirm that every input comes from the same period and uses the definition shown on the selected page.
A calculator returns a mathematical result. The worked example and limitations explain whether that result belongs in the decision you are making.
10 guides and calculators
Each page below gives the direct definition first, then the equation or method, inputs, sample calculation, common mistakes and related formulas.
CAGR Formula
cagr formula explained with the formula, inputs, example and limitations.
Open CAGR Formula →Debt-to-Equity Ratio
debt to equity ratio explained with the formula, inputs, example and limitations.
Open Debt-to-Equity Ratio →Return on Investment Formula
return on investment formula explained with the formula, inputs, example and limitations.
Open Return on Investment Formula →Return On Equity Ratio Formula
return on equity ratio formula explained with the formula, inputs, example and limitations.
Open Return On Equity Ratio Formula →Current Ratio Formula
current ratio formula explained with the formula, inputs, example and limitations.
Open Current Ratio Formula →Growth Rate Formula
growth rate formula explained with the formula, inputs, example and limitations.
Open Growth Rate Formula →Times Interest Earned Ratio
times interest earned ratio explained with the formula, inputs, example and limitations.
Open Times Interest Earned Ratio →Interest Coverage Ratio
interest coverage ratio explained with the formula, inputs, example and limitations.
Open Interest Coverage Ratio →Price Equity Ratio Formula
price equity ratio formula explained with the formula, inputs, example and limitations.
Open Price Equity Ratio Formula →Return On Assets
return on assets explained with the formula, inputs, example and limitations.
Open Return On Assets →How to choose the right formula
- Name the decision.
Decide whether you need a value, rate, margin, return, balance or comparison. - Match the timing.
Use annual figures with annual figures and distinguish a point-in-time balance from a period flow. - Check the definition.
Confirm what each numerator, denominator, cash flow or cost includes. - Run an example.
Reproduce the sample result before entering your own figures. - Test another case.
Change one assumption at a time and record what drives the answer.
Frequently asked questions
What is financial ratio formulas?
Calculate liquidity, leverage, growth, return and coverage ratios with consistent inputs.
How should I use financial ratio formulas?
Use the formula only after matching every input to the same period, unit and definition. Then compare the result with a worked example and the decision you are trying to make.
What is the most common mistake with financial ratio formulas?
The most common mistake is choosing a familiar formula before defining the decision, period, units and available inputs.
Can I calculate financial ratio formulas in a spreadsheet?
Yes. Reproduce the displayed equation with separate cells for each input, keep percentages as decimals, and test the spreadsheet against the worked example before replacing the sample figures.
Sources and methodology
The section’s financial context is checked against Beginners’ Guide to Financial Statements. Each leaf page names the source used for its specific formula or reporting relationship.