Fast, Free Calculators
for Professionals

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Tax & Business

Corporate tax, deductions, and business finance

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Live

Delaware Franchise Tax Estimator

Calculate your tax using the Assumed Par Value Method and see how much you can save vs. the default Authorized Shares bill.

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Section 179 Vehicle Deduction

Estimate your 2026 Section 179 tax deduction for business vehicles based on weight limits and usage.

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Retirement

Federal pensions, annuities, and retirement planning

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FERS High-3 Pension Calculator

Estimate your federal retirement annuity based on your High-3 average salary, years of service, and retirement age.

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Fitness & Nutrition

Macros, nutrition planning, and body composition

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Low-Carb & Strength Macro Calculator

Get exact daily macros using Mifflin-St Jeor — optimized for high protein and low-carb diets paired with strength training.

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Real Estate

Cash flow, investments, and house hacking

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House Hacking Cash Flow Estimator

Estimate your true net cost to live or monthly profit when renting out units in a duplex, triplex, or fourplex.

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E-Commerce & Marketing

ROAS, ad spend, and dropshipping metrics

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True Break-Even ROAS Calculator

Calculate exactly how much you can spend on ads before going into the red after COGS, shipping, and fees.

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