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Evan Miller

I'm a software engineer who builds web applications and data tools. I personally implement and verify the formula and logic behind every calculator on Launch Hub. I publish them as free online tools so anyone can get an answer without signing up or paying.

Child Tax Credit Calculator

Estimate your eligible Child Tax Credit amount for the current tax year. This tool helps individuals, families, and financial planners quickly calculate credits based on income, filing status, and qualifying dependents. It simplifies tax planning for personal budgets and annual…

Alignment Spec Calculator

This tool helps car owners, mechanics, and fleet managers check if their vehicle’s wheel alignment specs fall within recommended ranges. It calculates toe, camber, and caster deviations to prevent uneven tire wear and improve fuel efficiency. Use it during routine…

Debt Avalanche Calculator

This tool helps individuals with multiple debts prioritize repayment using the debt avalanche method. It calculates payoff timelines and interest savings by targeting high-interest balances first. Use it to plan your debt repayment strategy and reduce total interest costs.

Non-Deductible IRA Contribution Calculator

This tool helps individuals estimate non-deductible IRA contribution limits and after-tax growth. It’s designed for savers, financial planners, and anyone managing personal retirement budgets. Use it to plan contributions that align with IRS income phase-out rules.

Auto Lease Monthly Payment Calculator

Estimate your monthly auto lease payments with this tool designed for car shoppers, fleet managers, and auto enthusiasts. It factors in real-world automotive leasing costs including depreciation, fees, and local sales tax. Compare lease offers quickly to make informed decisions…

Pallet Configuration Calculator

This tool helps e-commerce sellers, small business owners, and traders calculate optimal pallet configurations for shipping. It factors in product dimensions, pallet size limits, and weight restrictions to maximize space and reduce freight costs. Use it to plan shipments more…