Hemisphere Volume Calculator: Formula & Surface Area
Free hemisphere volume calculator. Solve from radius, diameter, or volume, plus surface areas. Hemisphere volume formula V = 2/3 πr³ with worked examples.
Math Calculators
Math Calculators
Area of a Square Calculator: Formula, Side & Diagonal
Free area of a square calculator. Enter side, diagonal, perimeter, or area to solve the rest instantly. Square area formula A = a² explained with examples.
Math Calculators
Pyramid Volume Calculator: Formula, Square & Any Base
Free pyramid volume calculator. Solve square, rectangular, or regular polygon base pyramids. Pyramid volume formula V = ⅓ × base area × height with examples.
Math Calculators
Area of a Rectangle Calculator: Formula, Sides & Diagonal
Free area of a rectangle calculator. Enter any two values to solve area, perimeter, sides, or diagonal instantly. Rectangle area formula A = a × b explained.
Math Calculators
Arc Length Calculator: Formula, Sector Area & Chord
Free arc length calculator. Solve arc length, sector area, and chord from angle and radius. Arc length formula L = rθ in degrees or radians with examples.
Finance Calculators
Annual Income Calculator: Hourly, Monthly to Yearly Pay
Free annual income calculator. Turn hourly, daily, weekly or monthly pay into your yearly income in one click. See the full breakdown and formula.
Finance Calculators
Overtime Calculator: Time and a Half & Double Time Pay
Free overtime calculator. Enter your hourly rate and hours to see time and a half or double time pay, with a full breakdown and the exact formula.
Finance Calculators
Time and a Half Calculator: What Is 1.5x Your Pay?
Time and a half means 1.5 times your hourly rate. Enter your wage to see your overtime rate and pay in seconds, with a rate chart for common wages.
Finance Calculators
Commission Calculator: Flat, Tiered & Base Pay Rates
Free commission calculator. Work out flat, tiered, or base-plus-commission pay from your sales and rate. See the formula and a commission rate chart.
Finance Calculators
Salary to Hourly Calculator: Yearly Pay to Per Hour
Convert any salary to an hourly wage. See what $50,000, $60,000 or any yearly pay works out to per hour, week and month. Free calculator and full chart.