Money & Life Calculators
Plan your retirement, calculate tips, convert salaries, and reach your savings goals faster.
Retirement Calculator
Plan your retirement savings
Use calculatorTip Calculator
Calculate tips and split bills
Use calculatorHourly to Salary
Convert hourly wage to annual salary
Use calculatorSalary to Hourly
Convert annual salary to hourly wage
Use calculatorOvertime Pay Calculator
Calculate overtime pay based on hours worked
Use calculator401(k) Match Calculator
Calculate your employer 401(k) match and growth projections
Use calculatorSavings Goal Calculator
Calculate how to reach your savings goals
Use calculatorMortgage Calculator
Estimate your monthly mortgage payment with full cost breakdown
Use calculatorAmazon Product Profit Calculator
Calculate profit per unit, margin %, and ROI for any Amazon product
Use calculatorAmazon FBA Profit Calculator
Complete Amazon FBA profit calculator with margin, ROI, break-even ACoS, PPC, and return rate analysis
Use calculatorAmazon FBA Fee Calculator
Estimate Amazon referral fees and FBA fulfillment fees by category and weight
Use calculatorAmazon FBA ROI Calculator
Calculate ROI percentage for Amazon FBA products
Use calculatorAmazon FBA Margin Calculator
Calculate profit margin percentage for Amazon FBA products
Use calculatorAmazon FBA Revenue Calculator
Project daily, monthly, and yearly Amazon FBA gross revenue
Use calculatorAmazon Seller Profit Calculator
Calculate total monthly and yearly Amazon seller profit
Use calculatorShopify Profit Calculator
Calculate net profit per unit and monthly profit for Shopify stores
Use calculatorShopify Fee Calculator
Estimate Shopify payment processing fees and net revenue by plan
Use calculatorShopify ROI Calculator
Calculate ROI percentage for Shopify store products
Use calculatorShopify Margin Calculator
Calculate profit margin percentage for Shopify store products
Use calculatorShopify Revenue Calculator
Project daily, monthly, and yearly Shopify store gross revenue
Use calculatorShopify Product Profit Calculator
Calculate profit per unit and margin % for any Shopify product
Use calculatorShopify Dropshipping Profit Calculator
Calculate dropshipping profit per order and monthly profit for Shopify
Use calculatorAmazon FBA Break-Even Price Calculator
Solve for the minimum Amazon FBA selling price needed to achieve a target profit margin
Use calculatorAmazon FBA Target Margin Calculator
Screen Amazon FBA products against margin thresholds with auto-calculated fees by category and weight tier
Use calculatorAmazon PPC ACoS Calculator
Calculate Amazon PPC ACoS, TACoS, break-even ACoS, and advertising profitability
Use calculatorAmazon FBA Storage Fee Calculator
Calculate FBA monthly storage fees from product dimensions for off-peak and Q4 peak season
Use calculatorAmazon FBA Reorder Point Calculator
Calculate the exact FBA inventory level at which to trigger a reorder based on sales velocity and lead time
Use calculatorAmazon FBA Landed Cost Calculator
Calculate true per-unit landed cost for Amazon FBA including freight, duty, customs, and prep
Use calculatorAmazon FBA Coupon Impact Calculator
Calculate how a coupon discount and redemption fee impact FBA profit per unit and total monthly profitability
Use calculatorAmazon FBA Return Impact Calculator
Calculate how Amazon return rates affect effective FBA profit, monthly costs, and sustainable margin
Use calculatorAmazon FBM vs FBA Calculator
Side-by-side profit comparison of Amazon FBA vs FBM (Fulfillment by Merchant) fulfillment methods
Use calculatorAmazon FBA Weeks of Cover Calculator
Calculate weeks of FBA inventory cover, stockout date, and reorder quantity based on daily sales velocity
Use calculatorAmazon Dynamic Pricing Impact Calculator
Model how a price change affects Amazon FBA revenue, profit, margin, and ROI — before and after comparison
Use calculatorAmazon Buy Box Win Rate Profit Impact Calculator
Calculate how gaining or losing Amazon Buy Box share translates into incremental orders, revenue, and monthly profit
Use calculatorAmazon Price Drop Risk Calculator
Calculate the margin compression and break-even volume increase required to justify an Amazon price drop — with a High/Medium/Low risk indicator
Use calculatorEtsy Fee Calculator
Calculate all Etsy fees per sale with a full itemized breakdown
Use calculatorEtsy Profit Calculator
Calculate true net profit per Etsy sale after all fees and costs
Use calculatorEtsy Margin Calculator
Calculate gross vs. net profit margin and break-even price for Etsy listings
Use calculatorEtsy Seller Profit Calculator
Project monthly and annual net profit for an Etsy shop by sales volume
Use calculatorBrowse Other Categories
Age & Time
Calculate your exact age, countdown to birthdays, find birth days, and explore time-based calculations.
Body & Health
Track your BMI, BMR, body fat, ideal weight, and other key health metrics with our free calculators.
Measurements & Conversions
Convert between temperature, weight, volume, cooking, and length units instantly.
Lifestyle & Daily Tools
Optimize your sleep, hydration, nutrition, and daily energy expenditure with science-backed calculators.
Home & DIY
Estimate paint, flooring, concrete, and wall coverage for your home improvement projects.
EMS & Medical
IV drip rate, medication dosage, weight-based dose, and pediatric reference calculators for EMT and paramedic exam prep.