Sam Gorman

Convert total BTU to kWh, kWh to BTU, or a BTU/h equipment rating to kW with the correct unit type.

Convert watts and BTU per hour fast, with kW and cooling-ton equivalents plus a clear reminder that BTU/h is a rate.

Convert BTU/h to thermal watts or watts to BTU/h. Estimate AC electrical input from capacity and EER or CEER.

Convert nautical miles to feet or feet to nautical miles with exact basis, reverse mode, and adjustable rounding.

Convert feet to nautical miles fast, with meters, exact factors, and clear navigation unit explanations.

Convert nautical miles to kilometers or reverse, and also see the same distance in regular miles to avoid unit mix-ups.

Convert kilometers to nautical miles or reverse it, with adjustable decimal places and the exact conversion factor shown.

Convert nautical miles and miles both ways, with optional knots-to-time help and clear unit notes.

Convert miles and nautical miles with exact formulas, back-checks, meters, kilometers, and a quick reference table.

Convert standard or troy ounces to milligrams and avoid mixing up mass ounces with fluid ounces.