- Volume Calculator
- Area Calculator
- Perimeter Calculator
- Surface Area Calculator
- Circle Calculator
- Rectangle Calculator
- Triangle Calculator
-
Missing Side of a Rectangle from Area CalculatorFind the missing side of a rectangle from its area and one known side. Enter area and a side to get the other side plus the perimeter instantly.
-
Rectangular Carpet Cost CalculatorEstimate the cost of carpeting a rectangular room. Enter length, width and price per square metre to get total floor area and carpet cost instantly.
-
Rectangular Wall Area CalculatorCalculate the area of a rectangular wall from its length and height, then subtract doors and windows to get the net paintable or tileable area in m².
-
Maximum Area Rectangle for a Fixed PerimeterFind the maximum area of a rectangle for a given fixed perimeter. The optimum is always a square with side P/4 and area (P/4)². Free online tool.
-
Degrees-Minutes-Seconds to Decimal Degrees CalculatorConvert latitude/longitude in degrees, minutes and seconds (DMS) to decimal degrees instantly using decimal = D + M/60 + S/3600.
-
Belt Length Around Two Pulleys CalculatorCalculate the approximate length of an open belt around two pulleys from their diameters and center distance using the standard belt-length formula.
-
Clock Angle CalculatorCalculate the angle between the hour and minute hands of a clock at any time using the formula |30H − 5.5M|. Instant, accurate, with reflex angle.
-
Carpet Area CalculatorCalculate how many square yards of carpet you need from room length and width in feet, with an optional waste allowance for cuts and seams.
-
Tile Area CalculatorCalculate how many tiles you need for a floor or wall. Enter room and tile dimensions plus a wastage allowance to get the exact tile count.
-
Annulus (Ring) Area CalculatorCalculate the area of an annulus (ring) from its outer and inner radii using A = π(R² − r²). Also shows ring width and circumferences.
-
Arc Length from Degrees CalculatorCalculate the arc length of a circle from its radius and central angle in degrees. Also shows radians and full circumference instantly.
-
Regular Polygon Area CalculatorCalculate the area of any regular polygon from its number of sides and side length. Also returns apothem, perimeter, and interior angle instantly.
-
Bigha to Square Feet CalculatorConvert Bigha to square feet (ft²) for Indian land area. Pick your region's Bigha standard or set a custom factor. Also shows acres and square meters.
-
Marla to Square Feet CalculatorConvert Marla to square feet instantly. 1 Marla = 272.25 ft². Also shows square yards and square meters for land area in Pakistan and India.
-
Aquarium Volume CalculatorCalculate aquarium volume in gallons and liters from length, width, and height. Works with inches or centimeters for any rectangular fish tank.
-
Milliliters to Liters ConverterConvert milliliters (mL) to liters (L) instantly. Enter any volume in mL and get the exact result in liters using L = mL / 1000.
-
Cubic Meters to Cubic Feet CalculatorConvert cubic meters (m³) to cubic feet (ft³) instantly. Enter a volume in m³ and get the exact ft³ result using the factor 35.3147.
-
Pints to Cups ConverterConvert pints to cups instantly. Uses US measure (1 pint = 2 cups). Enter pints and get the exact number of cups for cooking and recipes.
-
Cubic Feet to Cubic Meters CalculatorConvert cubic feet (ft³) to cubic meters (m³) instantly. Enter any volume and get an accurate m³ result using the factor 1 m³ = 35.3147 ft³.
-
Cubic Feet to Cubic Yards CalculatorConvert cubic feet (ft³) to cubic yards (yd³) instantly. Just divide by 27. Free, accurate volume converter for concrete, mulch, gravel and soil.
-
Liters to Milliliters ConverterConvert liters (L) to milliliters (mL) instantly. Enter a volume in liters and get the exact equivalent in mL using mL = L × 1000.
-
Quarts to Gallons ConverterConvert quarts to gallons instantly. Enter any quart value to get US gallons using the simple formula gallons = quarts ÷ 4.
-
Oil Tank Volume CalculatorCalculate how many gallons of heating oil are in a horizontal cylindrical tank from the diameter, length, and stick/dip fill depth.
-
Trench Volume CalculatorCalculate trench excavation volume in cubic yards, cubic feet and cubic meters from length, width and depth. Free, fast and accurate.
