Welcome to OpenCalculators

Your one-stop solution for all calculation needs. Simple, accurate, and free to use.

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Liters Converter

Convert liters to fluid ounces (fl oz), with support for both US and UK measurements.

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Gallons to Fluid Ounces Calculator

Convert gallons to fluid ounces (fl oz) with support for both US and UK measurements.

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Cups to Fluid Ounces Calculator

Convert cups to fluid ounces (fl oz) with support for both US and UK measurements.

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Time Duration Calculator

Calculate the duration between two times. Perfect for tracking time intervals, work hours, or event durations.

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Mortgage Calculator

Calculate your monthly mortgage payments based on home price, down payment, interest rate, and loan term.

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FHA Loan Calculator

Calculate FHA loan payments including mortgage insurance premiums (MIP) based on home price and down payment.

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