Flow alone has no pressure. But a pump with a known horsepower and flow can only make so many psi. Quick answer: Multiply the horsepower by 1,714, then divide by the flow in gpm. The answer is the pressure in psi. For example, 10 gpm, 5 hp is 857 psi, 5 gpm, 3 hp is…
In water, 1 mg/L is 1,000 ppb. For other liquids, the density changes the answer. Quick answer: Multiply the mg/L by 1,000 and divide by the density of the liquid in g/mL. For example, 0.5 mg/L of Water is 500 ppb, 0.5 mg/L of Whole milk is 485.44 ppb and 0.5 mg/L of Olive oil…
50 µg/mL is 5 mg/dL, because 1 µg/mL equals 0.1 mg/dL. Quick answer: Multiply the µg/mL by 0.1, or divide by 10. For example, 50 µg/mL is 5 mg/dL, 100 µg/mL is 10 mg/dL and 25 µg/mL is 2.5 mg/dL. The µg/mL to mg/dL formula Milligrams per dL equal micrograms per mL times 0.1. The…
In water, 25 mg/L is 25 ppm, but in a heavier liquid the same mg/L means fewer ppm. Quick answer: Divide the mg/L by the density of the liquid in g/mL. For example, 25 mg/L at 1 g/mL is 25 ppm, 100 mg/L at 1.2 g/mL is 83.333 ppm and 500 mg/L at 0.8 g/mL…
A label that says 50 mg/g means the product is 5 percent by weight. Quick answer: Divide the mg/g value by 10. For example, 10 mg/g is 1 percent, 50 mg/g is 5 percent and 250 mg/g is 25 percent. The mg/g to percent formula Percent by weight equals the mg/g value divided by 10….
Convert average glucose in mg/dL or mmol/L to estimated A1C, with the formula, a worked example and a reference table.
A light of 100 candlepower that shines evenly in all directions gives about 1,257 lumens. Quick answer: Multiply the candlepower by 4 pi, which is about 12.566. For example, 100 candlepower is 1,256.64 lm, 1 candlepower is 12.566 lm and 500 candlepower is 6,283.19 lm. The candlepower to lumens formula Lumens equal candlepower times 4…
The wrench is marked in sixteenths, the drawing is in millimetres, and the only way to match them is to turn a metric size into the nearest fraction of an inch. Quick answer: divide the millimetres by 25.4 to get decimal inches, then round to the nearest 1/16, 1/32 or 1/64. So 10 mm is…
A payment card is about 30 thou thick, which sounds odd until you convert it: roughly three quarters of a millimetre. Quick answer: divide the millimetres by 0.0254, or multiply by 39.3701. So 1 mm is 39.37 mil, 0.5 mm is 19.69 mil, 2 mm is 78.7 mil and 25.4 mm is exactly 1,000 mil….
A vitamin D capsule marked 1,000 IU holds 25 mcg, because 1 mcg of vitamin D equals 40 IU. Quick answer: Divide the IU by 40. For example, 1,000 IU is 25 mcg, 400 IU is 10 mcg and 600 IU is 15 mcg. The vitamin D IU to mcg formula Micrograms equal the IU…