All Formulas
Explore formula guides that explain the equations, variables, and assumptions behind each calculator.
40 Formulas
Supporting formulas across every calculator category.
All FormulasBusiness FinanceCost Of LivingEbayEtsyFreelancingPersonal FinanceSales FunnelSocial Media Marketing
Freelance Monthly Income FormulaLearn how the freelance monthly income calculator estimates gross income, tax set-aside, take-home income, and e...View formula→Freelance Annual Income FormulaLearn how to calculate gross freelance revenue, net income before tax, estimated tax and annual take-home income.View formula→Take Home Pay FormulaLearn how take-home pay is estimated from gross income, tax, pension contributions and other recurring deductions.View formula→Salary Calculator FormulaLearn how a salary calculator estimates annual deductions and take-home pay from gross salary and basic deductio...View formula→Hourly Wage Calculator FormulaLearn how weekly, monthly, annual, and overtime gross pay are calculated from an hourly wage and hours worked.View formula→Overtime Pay FormulaLearn how overtime pay, total gross pay, and effective hourly earnings are calculated for a pay period.View formula→Bonus Pay Calculator FormulaLearn how a bonus pay calculator estimates gross bonus, deductions, and take-home bonus pay.View formula→Sales Funnel Conversion Rate FormulaLearn how to calculate conversion rates at each stage of a sales funnel, overall funnel conversion, drop-off, an...View formula→Sales Funnel ROI FormulaLearn how a sales funnel ROI calculator estimates leads, customers, revenue, profit, and return on investment fr...View formula→Sales Funnel Revenue FormulaLearn how a sales funnel revenue calculator estimates leads, customers, revenue and simple marketing efficiency...View formula→Sales Funnel Profit FormulaLearn how a sales funnel profit calculator estimates leads, customers, revenue, profit, ROAS, and margin from yo...View formula→Sales Funnel Cost FormulaLearn how to calculate total funnel cost, cost per lead, cost per customer, revenue, profit, and ROAS for a sale...View formula→