Fan makers outside the US write m³/h. To get CFM, multiply by 0.5886. Quick answer: multiply the flow in m³/h by 0.5886. For example, 10 m³/h is 5.886 CFM, 100 m³/h is 58.858 CFM and 500 m³/h is 294.29 CFM. The m³/h to CFM formula One m³ is 35.3147 cubic feet, and one hour is…
A table gives energy for a mole, but a plant or a fuel tank deals in kilograms. You change one to the other with the molar mass. Quick answer: multiply the kJ/mol by 1,000, then divide by the molar mass in g/mol. For example, 40.65 kJ/mol of water is 2,256.5 kJ/kg, 890 kJ/mol of methane…
A single-phase 11,000 V line that carries 200 amps at a power factor of 1 delivers 2.2 megawatts. Quick answer: Multiply the volts by the amps and the power factor, then divide by 1,000,000. For example, 11,000 V at 200 A, PF 1, single-phase is 2.2 MW, 11,000 V at 200 A, PF 0.9, three-phase…
A 230 volt supply across a 50 ohm heating element delivers about 1.06 kilowatts. Quick answer: Square the voltage, divide by the resistance, then divide by 1,000. For example, 230 V across 50 ohms is 1.058 kW, 120 V across 24 ohms is 0.6 kW and 12 V across 3 ohms is 0.048 kW. The…
A 50 kWh battery in a car that uses 160 Wh per km can go about 312 km, which is 194 miles. Quick answer: Multiply the battery kWh by 1,000, then divide by the Wh per km. For example, 50 kWh at 160 Wh per km is 312.5 km, 75 kWh at 200 Wh per…
Raw speeds come in bits per second. Divide by 1,000,000 to see them in Mbps. Quick answer: multiply the speed in bit/s by 0.000001. For example, 1,000,000 bit/s is 1 Mbps, 5,000,000 bit/s is 5 Mbps and 250,000 bit/s is 0.25 Mbps. The bit/s to Mbps formula One Mbit/s is 1,000,000 bit/s (Wikipedia: Data-rate units)….
A 12 degree Brix juice has a specific gravity of about 1.048, or about 1,046 kg/m3. Quick answer: Use the sugar solution formula, then multiply the specific gravity by the density of water. For example, 12 Brix is 1.048 SG, 20 Brix is 1.083 SG and 5 Brix is 1.02 SG. The Brix to density…
A change of 3 dB is about double the power and 1.41 times the voltage. Quick answer: For power divide the dB by 10, for voltage divide by 20, then raise 10 to that power. For example, 3 dB is 1.995, 10 dB is 10 and -10 dB is 0.1. The dB to ratio formula…
10 dimes make exactly 1 dollar and weigh just 22.68 grams. Quick answer: Multiply the number of dimes by 0.1, or divide by 10. For example, 10 dimes is 1 dollars, 25 dimes is 2.5 dollars and 100 dimes is 10 dollars. The dimes to dollars formula Dollars equal the number of dimes times 0.1….
5 g of water is about 5 mL, which is roughly 100 drops from a standard dropper. Quick answer: Turn grams into mL, then multiply by 20 drops per mL. For example, 5 g of water is 100 drops, 5 g of granulated sugar is 118.29 drops and 5 g of brown sugar (packed) is…