Financial Calculators

ROI, profit margin, compound interest, and other financial percentage calculators.

10 Calculators Available

Available Calculators

ROI Calculator (Return on Investment)

Calculate return on investment percentage with gain/loss analysis.

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Formula

ROI % = ((Final Value - Initial Investment) / Initial Investment) × 100

Example

initialInvestment: 1000, finalValue: 1500, roi: 50

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Profit Margin Calculator

Calculate profit margin percentage, profit amount, and markup percentage for your business.

Formula

Profit Margin % = (Profit / Revenue) × 100

Example

revenue: 1000, cost: 600, profit: 400, profitMargin: 40, markup: 66.67

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Sales Tax Calculator

Calculate sales tax amount and total price with tax. Enter price and tax rate to get instant results.

Formula

Tax Amount = Price × (Tax Rate / 100)

Example

price: 100, taxRate: 8.5, taxAmount: 8.5, totalPrice: 108.5

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Discount Calculator

Calculate discount percentage and final price after discount.

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Formula

final price = original price - (original price × discount% / 100)

Example

originalPrice: 100, discountPercent: 20, discountAmount: 20, finalPrice: 80

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Compound Interest Calculator

Calculate compound interest with different compounding frequencies. See how your investment grows over time with detailed breakdown.

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Formula

A = P(1 + r/n)^(nt) where A=final amount, P=principal, r=rate, n=compounds per year, t=years

Example

principal: 10000, rate: 5, years: 10, compounds: 12, finalAmount: 16470.09, interest: 6470.09

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Loan Interest Calculator

Calculate total loan interest, monthly payments, and payoff schedule. Perfect for personal loans, auto loans, and student loans.

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Formula

Monthly Payment = P[r(1+r)^n]/[(1+r)^n-1] where P=principal, r=monthly rate, n=number of payments

Example

loanAmount: 20000, interestRate: 6, loanTerm: 5, monthlyPayment: 386.66, totalInterest: 3199.6, totalPaid: 23199.6

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Mortgage Calculator

Calculate monthly mortgage payments, total interest, and amortization schedule. Includes property tax and insurance estimates.

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Formula

M = P[r(1+r)^n]/[(1+r)^n-1] + Property Tax/12 + Insurance/12

Example

homePrice: 300000, downPayment: 60000, loanAmount: 240000, interestRate: 4.5, loanTerm: 30, monthlyPayment: 1216.04, totalInterest: 197774.4

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Investment Return Calculator

Calculate investment returns including capital gains, dividends, and total return percentage. Track portfolio performance over time.

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Formula

Total Return % = ((Final Value - Initial Investment + Dividends) / Initial Investment) × 100

Example

initialInvestment: 10000, finalValue: 12500, dividends: 500, totalReturn: 30, annualizedReturn: 8.45

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Markup Percentage Calculator

Calculate markup percentage and selling price from cost. Essential for retail pricing, product pricing, and profit planning.

Formula

Markup % = ((Selling Price - Cost) / Cost) × 100

Example

cost: 50, sellingPrice: 75, markup: 50, profitMargin: 33.33

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Commission Calculator

Calculate sales commission based on percentage rate. Perfect for salespeople, real estate agents, and commission-based earnings.

Formula

Commission = Sales Amount × (Commission Rate / 100)

Example

salesAmount: 50000, commissionRate: 5, commission: 2500, netProfit: 47500

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