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CATEGORY19 tools

Finance & Budgeting

Loan, interest, budgeting, and everyday money calculators for personal and business decisions.

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Amazon FBA Fee Calculator

Estimate 2026 US fees, profit, margin, and ROI.

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Break-Even Calculator

Calculate the units and revenue needed to break even.

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CAGR Calculator

Calculate compound annual growth rate.

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Compound Interest Calculator

Simulate your investment growth with monthly contributions, interest compounding, and yearly tables.

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Electricity Cost Calculator

Estimate kWh usage and electricity cost for one or more appliances.

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Event Budget Calculator

Estimate event cost and break-even price per guest.

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Freelance Rate Calculator

Calculate minimum hourly, daily, and project rates.

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Fuel Cost Calculator

Estimate trip fuel cost, liters, and split per passenger.

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Handmade Product Pricing Calculator

Calculate craft production costs, retail and wholesale prices, and break-even points.

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Loan Calculator

Estimate monthly payment and total interest.

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Margin, Markup & ROI Calculator

Calculate profit margin, markup, or investment ROI from cost and price.

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Marketplace Profit Calculator

Calculate unit net profit, profit margins, and break-even selling price.

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Meeting Cost Calculator

Estimate the hidden time cost of a meeting.

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Rent Split Calculator

Split rent and shared bills evenly or by room weight.

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Salary to Hourly Rate Calculator

Convert monthly salary to hourly rate, or the other way around.

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Sales Goal Calculator

Calculate required sales per day, week, and month to hit your revenue targets.

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Savings Goal Calculator

Calculate the monthly savings needed to reach a goal.

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Tip Split Calculator

Split a bill, tip, and service fee across a group.

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Unit Price Comparator

Compare two product sizes by price per unit.