Calculate force using and piston diameter. Input values in multiple units. Display results with up to 16 decimal places. Copy results to other apps. Include formulas for reference. Optimized for efficient use.
Calculate , perimeter, , and weight for 170+ geometric shapes. Input measurements or use calculation methods for missing values. Select materials like metal, wood, or liquid to determine weight. Search shapes by typing or swipe through categories.
Calculate airflow displacement by inputting velocity or volume. Select duct type and dimensions with unit options. Instantly display results in preferred units including fl/min, m/s, and ft3/min.
Track vehicle by entering distance traveled and gasoline volume. Calculate fuel economy in metric, U.S., or Imperial units. View all gasoline usage data on a single page.
Convert units for distance, area, volume, and . Switch between mm, cm, m, km, in, ft, yd, mi, and their squared or cubed equivalents. Convert grams, kilograms, tonnes, and oil barrels to liters or gallons.