4 tools
Math calculators
Math calculators for everyday life — percentages, fractions and averages with every step shown.
Percentages, fractions, averages and everyday arithmetic with transparent formulas and step-by-step working.
- ✓ Step-by-step working, not just answers
- ✓ Handles decimals, negatives and edge cases
- ✓ Built for students, shoppers and professionals
Percentage Calculator
What is X% of Y? What % is X of Y? Answered with steps.
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Percentage Increase / Decrease Calculator
Old → new percent change, with increase vs decrease explained.
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Fraction Calculator
Add, subtract, multiply, divide and simplify fractions exactly.
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Average Calculator
Mean, median, range and count — paste any number list.
Open calculatorHow to get the most from math tools
Every math calculator on CalcHive follows the same workstation pattern: validated inputs, Calculate and Reset controls, a result panel with steps, then a field guide with formula, worked example, five use cases, pro tips and mistakes. Start with the most popular tool in this shelf, run your real numbers, then use Related calculators to cross-check — for example, Discount with GST, or Age with Date Difference.
All calculations run privately in your browser and every page is statically generated for speed. If a figure will appear in a contract, tax return or medical record, treat our output as a rigorous draft and confirm with the authoritative source cited in the disclaimer.
Common questions
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BMI Calculator
Know your Body Mass Index in seconds — with healthy-range context.
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Age Calculator
Exact age in years, months, days — plus totals and next birthday.
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Date Difference Calculator
Days between dates — with weekdays, weekends and inclusive counts.
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