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Quick Start

Visit the "Calc" toolset on HeronTool—all calculators are browser-based, no installation needed. For example, Date Calculator helps you find days between dates or add/subtract days; Age Calculator just needs your birth date to give exact age instantly.

Formulas & Finance

Percentage Calculator handles discounts, growth rates—enter base and percentage. Fraction Calculator supports add, subtract, multiply, divide, and simplification. Equation Solver solves linear and quadratic equations; input coefficients for roots. For finance, Loan Calculator estimates monthly payments and total interest, while Tip Calculator quickly computes tip amounts and per-person share.

Health & Advanced

BMI Calculator evaluates body mass index from height and weight. For complex expressions, combine multiple tools for stepwise calculation. All results are copyable for easy recording.

FAQ

• Q: Can I export results? A: Yes, copy the result and paste it into your document or spreadsheet.
• Q: Does Equation Solver handle higher-degree equations? A: It supports up to quadratic; for higher degrees, use piecewise or numerical methods.
• Q: Does Date Calculator consider leap years? A: Yes, it automatically accounts for leap years and varying month lengths.