How-To Guides
Step-by-step guides that teach you how to perform calculations manually.
How to Calculate the Present Value of an Annuity: A Step-by-Step Guide
Calculate present value of annuity manually
Read guideHow to Calculate Retirement Savings: Step-by-Step Guide
Plan your retirement with ease
Read guideQuarterly Tax Estimator: A Step-by-Step Guide
Estimate quarterly taxes manually
Read guideFICA Tax Calculator: A Step-by-Step Guide
Calculate Social Security and Medicare tax withholding
Read guideW-4 Withholding Calculator: A Step-by-Step Guide
Calculate W-4 withholding manually
Read guideTax Refund Estimator: Step-by-Step Guide
Estimate your federal tax refund or amount owed
Read guideHow to Calculate Managed Futures Returns: A Step-by-Step Guide
Calculate managed futures returns manually
Read guideHow to Calculate Effective Tax Rate: Step-by-Step Guide
Calculate effective tax rate manually
Read guideHow to Calculate Your Marginal Tax Rate: Step-by-Step Guide
Learn to manually calculate your marginal tax rate for the next dollar of income. Understand your tax bracket, effective rate, and common pitfalls.
Read guideHow to Calculate Progressive Tax: Step-by-Step Guide
Learn to calculate your progressive tax liability by hand, understand tax brackets, marginal vs. effective rates, and avoid common pitfalls.
Read guideHow to Calculate Customs Duty: Step-by-Step Guide
Learn to manually calculate customs duty, import tariffs, and total landed cost for international purchases. Understand the formula, HS codes, and common pitfalls.
Read guideHow to Calculate Excise Tax: Step-by-Step Guide
Learn to manually calculate excise tax on fuel, alcohol, or tobacco. Understand the formula, work through examples, and avoid common mistakes.
Read guideHow to Calculate Accounts Receivable Turnover and Days Sales Outstanding: A Step-by-Step Guide
Learn to manually calculate Accounts Receivable Turnover Ratio and Days Sales Outstanding (DSO) with formulas, a worked example, and common pitfalls.
Read guideHow to Calculate the Interest Coverage Ratio (ICR): Step-by-Step Guide
Learn to calculate the Interest Coverage Ratio (ICR) by hand using EBIT and interest expense. Understand the formula, worked examples, and common pitfalls.
Read guideHow to Calculate Your Debt Ratios: Step-by-Step Guide
Learn to manually calculate your Debt Ratio and Debt-to-Equity Ratio. Understand your financial health with formulas, examples, and common pitfalls.
Read guideHow to Calculate Cash Flow: Step-by-Step Guide
Learn to calculate cash flow manually! Understand income vs. expenses, apply the formula, and see net cash flow for your business or personal finances. Includes example and pitfalls.
Read guideHow to Calculate Stock Profit and Return: Step-by-Step Guide
Learn to manually calculate stock profit and return on investment (ROI) with easy-to-follow steps, formulas, a worked example, and common pitfalls.
Read guideHow to Calculate COGS: Step-by-Step Guide
Learn to calculate Cost of Goods Sold (COGS) manually with our easy guide. Understand the formula, worked examples, and common pitfalls for your business.
Read guideHow to Calculate Asset Turnover Ratio: Step-by-Step Guide
Learn to manually calculate the asset turnover ratio using revenue and total assets. Understand this key efficiency metric with our step-by-step guide and example.
Read guideHow to Calculate Operating Leverage: Step-by-Step Guide
Learn to manually calculate Operating Leverage step-by-step. Understand the formula, worked examples, and common pitfalls to assess business risk.
Read guideHow to Calculate Gross Profit and Gross Margin %: Step-by-Step Guide
Learn to manually calculate Gross Profit and Gross Margin Percentage with this easy step-by-step guide. Includes formulas, a worked example, and common pitfalls.
Read guideHow to Calculate Return on Equity: Step-by-Step Guide
Learn to manually calculate Return on Equity (ROE) using net income and shareholders' equity. Understand the formula, worked examples, and common pitfalls.
Read guideHow to Calculate Burn Rate and Runway: Step-by-Step Guide
Learn to manually calculate your startup's monthly burn rate and runway. Understand the formulas, see a worked example, and avoid common pitfalls.
Read guideHow to Calculate Contribution Margin: Step-by-Step Guide
Learn to calculate Contribution Margin per unit and CM Ratio by hand. Understand formulas, see a worked example, and avoid common pitfalls.
Read guideHow to Calculate Your Selling Price: Step-by-Step Guide
Learn to manually calculate your selling price to hit target gross margins. Understand the formula, follow a worked example, and avoid common pitfalls.
Read guideHow to Calculate Inventory Turnover: Step-by-Step Guide
Learn to calculate Inventory Turnover Ratio and Days Inventory Outstanding by hand. Understand stock efficiency with COGS and average inventory.
Read guideHow to Calculate Working Capital and Current Ratio: Step-by-Step Guide
Learn to manually calculate Working Capital and Current Ratio. Understand liquidity, formulas, and common pitfalls for better financial insight.
Read guideHow to Calculate Churn Rate: Step-by-Step Guide
Learn to manually calculate customer churn rate step-by-step. Understand the formula, work through an example, and discover how to measure your business's customer retention.
Read guideHow to Calculate Inflation-Adjusted Values: Step-by-Step Guide
Learn to manually adjust values for inflation using a simple formula. Understand purchasing power erosion with our easy guide.
Read guideHow to Calculate Sale Price: Your Easy Step-by-Step Guide
Learn to manually calculate sale prices, savings, and discount fractions! This guide covers formulas, examples, and common pitfalls to help you shop smarter.
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