thy.finance

Master thy money, own thy future

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Compound Interest Calculator

Calculate how your investments grow with compound interest over time. Includes monthly contributions and detailed breakdowns.

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Retirement Calculator

Plan your retirement with accumulation and withdrawal phases. See if you'll have enough for your golden years.

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ROI Calculator

Calculate return on investment with net profit, annualized returns, and comprehensive analysis.

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Savings Goal Calculator

Determine how long it will take to reach your savings goals with regular contributions and interest.

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Mortgage Calculator

Calculate monthly mortgage payments, total interest, and amortization schedules for home loans.

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401(k) Calculator

Plan your 401(k) contributions with employer matching and tax advantages.

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Loan Calculator

Calculate loan payments, interest, and create amortization schedules for any type of loan.

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Dividend Calculator

Calculate dividend income and reinvestment growth for dividend-paying stocks.

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Emergency Fund Calculator

Calculate how much you need in an emergency fund and plan your savings strategy.

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Debt Payoff Calculator

Create a debt payoff plan using snowball or avalanche method to become debt-free faster.

Why Use Our Calculators?

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Beautiful Design

Modern dark theme that's easy on the eyes

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Visual Charts

Interactive charts powered by Chart.js

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Accurate Results

Precise calculations you can trust

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Responsive

Works perfectly on all devices

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100% Free

No hidden fees or subscriptions

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Private

Your data stays on your device