Calculator Hub

Standard, scientific, mole, energy, stoichiometry, and equation balancing calculators.

Keyboard works: numbers, operators, Enter, Backspace, and Escape. Use Convert to change decimals into fractions or π/radian form.

RAD Decimal

Scientific mode supports DEG/RAD, trig, inverse trig, powers, roots, log, ln, π, e, and Ans. Convert cycles Decimal → Fraction → π/Radian → Decimal.

Mole Calculator

Mass in grams Molar mass g/mol

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Formula: moles = grams ÷ molar mass. Press Enter to calculate.

Amount Convert from Convert to

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1 calorie = 4.184 joules. 1 food Calorie = 1 kilocalorie = 1000 calories.

Given mass in grams Given molar mass g/mol Given coefficient Wanted coefficient Wanted molar mass g/mol

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Flow: grams given → moles given → mole ratio → grams wanted.

Chemical equation

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Use -> between reactants and products. Example: CH4 + O2 -> CO2 + H2O