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How far was struck by lightning
Calculator based on the specified time from seeing lightning until you hear thunder in the distance calculated discharge occurred.
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Rainwater tank
The calculator calculates the amount of collected rainwater from the roof of the given dimensions.
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Calculate how much you drink pure ethanol
On the basis of the data entered, the amount of drink and the percentage of alcohol content calculator calculates pure ethyl alcohol that we consume.
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Life
Battery charging time calculator
Calculator to the data calculates the estimated time of charging.
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Key indicator Return on assets (ROA)
Calculator based on the values entered in net profit and assets are calculated return on assets ROA. ROA is a measure of return on assets. This ratio indicates a company's ability (and more specifically - of its assets) to generate profit.
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Calculator floor panels
Calculator based on the dimensions of the area to put the panels and occupancy data on number of panels in one package, calculate how much you have to buy packages of panels to cover the entire room.
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Air conditioning calculator
Calculator helps you calculate the estimated power consumption for room air conditioner with the specified size and the number of people working in the space.
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Mean and covariance matrix calculator
Covariance is a measure of the covariance of two variables (X and Y). The calculator calculates the average for the sample and the covariance between variables. Sets of X and Y must be the same number.
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ROCE - an indicator of the efficiency of investment
The calculator calculates ROCE on the basis of these pre-tax profits, total capital and current liabilities ROCE (called Return On Capital Employed) - an indicator of the efficiency and profitability of the investment, which is the capital of the company involved.