How to convert kg to lbs/oz.

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Please help my dosage test is Thursday! How do you convert kg to lbs/oz? I have a sample problem but I think the teacher's answer may be wrong...

If baby weighs 2.8 kg, convert to lbs/oz

I get most of these steps... 2.8 kg x 2.2 lbs = 6.16 lbs.

So for the oz it would be .16 oz x 16 oz = 2.56 oz.

I thought the answer would be 6 lbs 2.56 oz.

But she has it as 6.256 lbs, and I have no idea how she arrived at that. Am I going nuts???

Any insight is greatly appreciated!

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Specializes in Acute Care, Rehab, Palliative.

2.56 converts to 0.256 when you are expressing the weight in pounds.If you figuring out a dosage you will not express the weight in pounds and ounces, just pounds.If you are doing a dosage calculation you would just use the 6.16.

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Specializes in Hem/Onc/BMT.

That doesn't make sense to me. Pounds and ounces are different units. You can't just put the numbers in oz onto numbers in lbs like that. I agree with your answer. Maybe you can ask your teacher to show you how she arrived to her answer.

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Specializes in Hem/Onc/BMT.
loriangel14 said:
2.56 converts to 0.256 when you are expressing the weight in pounds.If you figuring out a dosage you will not express the weight in pounds and ounces, just pounds.

But 2.56 was the value in oz. If you were expressing soley in lbs, it should be left as 6.16lbs. 0.256 is the tenth of 2.56. An ounce is not a tenth of a pound, but 16th, isn't it?

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Specializes in ER/ICU/STICU.

Your teacher has the wrong answer. You are correct in 6lbs 2.56 oz. There are 16 oz in a lb so you can't just place the 2.56 oz as .256... if you multiply 6.16 lbs by 16 oz your total weight is 98.56 oz. If you multiply your teacher's answer by 16 you get 100.1 oz so you can see the discrepancy.

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Specializes in ER/ICU/STICU.
loriangel14 said:
2.56 converts to 0.256 when you are expressing the weight in pounds

It would only convert to that if there were 10 oz in a lb.

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Specializes in Acute Care, Rehab, Palliative.

You are right. I messed up.

It doesn't matter. You would still use the 6.16 lbs when doing the calculation.

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Specializes in Leadership, Psych, HomeCare, Amb. Care.

Nurse2b, your calculations are correct

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ah ha! a student with critical thinking skills! Now, put your utmost effort into being socially correct, and ask you teacher about this in PRIVATE!

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.

Know your conversions

The Short List 1 cup © = 8 ounces (oz)

1 dram (Dr) = 60 grains (gr)

1 dram (fl Dr) = 60 minims

1 gallon (gal) = 4 quarts (qt)

1 glass = 8 ounces (oz)

1 grain (gr) = 64.8 milligrams (mg)

1 gram (g) = 15.43 grains (gr)

1 inch (in) = 2.54 centimeters (cm)

1 kilogram (kg) = 2.2 pounds (lb)

1 liter (L) = 1.057 quarts (qt)

1 milliliter (mL) = 16.23 minims

1 minim = 1 drop (gt)

1 ounce (oz) = 2 tablespoons (tbsp)

1 ounce (oz) = 8 drams (Dr)

1 ounce (fl oz) = 29.57 milliliters (mL)

1 pint (pt) = 16 ounces (oz)

1 pound (lb) = 16 ounces (oz)

1 quart (qt) = 0.946 liters (L)

1 quart (qt) = 2 pints (pt)

1 tablespoon (tbsp) = 3 teaspoons (tsp)

1 teacup = 6 ounces (oz)

1 teaspoon (tsp) = 4.93 mL

The Long list

1 central = 45,359 grams (g)

1 centimeter (cm) = 10 millimeters (mm)

1 cubic centimeter (cc) = 1 milliliter (mL)

1 cup © = 8 ounces (oz)

1 drachm = 3.55 milliliter (mL)

1 dram (Dr) = 60 grains (gr)

1 dram (fl Dr) = 60 minims

1 gallon (gal) = 4 quarts (qt)

1 gill = 4 ounces (oz)

1 glass = 8 ounces (oz)

1 grain (gr) = 64.8 milligrams (mg)

1 gram (g) = 1,000 milligrams (mg)

1 gram (g) = 1,000,000 micrograms (mcg)

1 gram (g) = 15.43 grains (gr)

1 hand = 4 inches (in)

1 inch (in) = 2.54 centimeters (cm)

1 kilogram (kg) = 1,000 grams (g)

1 kilogram (kg) = 2.2 pounds (lb)

1 liter (L) = 1000 milliliters (mL)

1 liter (L) = 1.057 quarts (qt)

1 meter (m) = 1,000 millimeters (mm)

1 meter (m) = 100 centimeters (cm)

1 milligram (mg) = 1,000 micrograms (mcg)

1 milliliter (mL) = 1 cubic centimeter (cc)

1 milliliter (mL) = 15 drops (gt)

1 milliliter (mL) = 16.23 minims

1 minim = 1 drop (gt)

1 ounce (fl oz) = 2 tablespoons (tbsp)

1 ounce (oz) = 20 pennyweights (dwt)

1 ounce (oz) = 24 scruples

1 ounce (oz) = 31.1 grams (g)

1 ounce (oz) = 480 grains (gr)

1 ounce (oz) = 8 drams (Dr)

1 ounce, fluid (fl oz) = 29.57 milliliters (mL)

1 palm = 3 inches (in)

1 pennyweight (dwt) = 24 grains (gr)

1 pint (pt) = 16 ounces (oz)

1 pint (pt) = 4 gills

1 pound (lb) = 16 ounces (oz)

1 pound (lb) = 350 scruples

1 quart (qt) = 0.946 liters (L)

1 quart (qt) = 2 pints (pt)

1 scruple = 20 grains (gr)

1 stone = 0.14 cents

1 tablespoon (tbsp) = 3 teaspoons (tsp)

1 teacup = 6 ounces (oz)

1 teaspoon (tsp) = 60 drops (gtt)

1 teaspoon (tsp) = 4.93 ml

and this is a great site!!! http://www.dosagehelp.com/steps.html

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Thanks everyone for your help!

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.
morte said:
ah ha! a student with critical thinking skills! Now, put your utmost effort into being socially correct, and ask you teacher about this in PRIVATE!

I know right? The OP has good skills and sees that something isn't right! I agree.....bring this up to your teacher in private that there is a mistake on the question. It is never a good idea to point out a an error publicly.

These critical thinking skills will serve you well in the future........when something doesn't seem right it probably isn't!

Good luck on your test.!

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