What is approx 100ml in kilogrammes? Confused with Google conversion charts!

[SWnewstart]

To get an idea of postage charge, I need to know what a 100ml bottle of perfume weighs in kg. Online conversion charts confuse me greatly, I have a "blindness" with such things - can anyone help please?

Your best bet would just be to weigh it!

100ml of water weighs 0.1kg. Not sure how that translates to perfume and obviously that does not include the glass bottle.

It depends on the liquid. 100ml of water = 100 grams. But not all liquids have the same density, so 100 ml can weigh more or less than 100 grams.

For the purposes of perfume it should be roughly 100 grams (+ the weight of the bottle!)

I always find it useful to check Amazon for weights of products. There's usually a dimensions descriptor somewhere!

Millilitres are a measurement of liquid, kilos are a measurement of weight.

Two different things, however I'm sure you could weigh it on a kitchen scales to see.

The 100ml of perfume will way roughly 100g. It's the bottle that will make most difference to the total weight, though - say around 200g for that, maybe less depending on the glass, around 300g total weight.

Thanks for prompt replies! It's Rive Gauche perfume in a lightweight metal container - sorry for the confusion by saying "bottle" and thereby assumption it's glass. Also I don't have access to any kitchen scales right now.

Now here's another question - very roughly, what would 327g be in mls? Again perfume related, but the other way round obviously :-)

327ml.

Thank you all for helping me get my head round this. Words I love, but numbers defeat me!

1ml weighs 1g-it’s magic!

Don't forget to include the weight of the bottle, the lid and the box plus your packaging, bubble wrap etc. As pp, I would look it up on Amazon and look at the product spec for the weight.

@Haggisfish

1ml weighs 1g-it’s magic!

This is a joke right?

OP, ml is a measure of volume, grams is a measure of weight*. You can't convert one to the other without more information.

Your question is not far off "I've got a pound of flour, how much is that in feet?". It doesn't make sense.

Not to mention that at 100ml, the weight of the fluid is likely to be less than that of the bottle, spraypump, and packaging.

ALL THAT SAID 100ml ain't a lot, alcohol is lighter than water**, and it is in a light metal tube, and you're not going to use a massive box are you? So allow 300g and you probably won't go far wrong.

• yes yes mass, quiet down nitpickers, not the place

** water is 1ml = 1g. This doesn't hold true for pretty much anything else - 1ml of alcohol = 0.79g, for example. 1ml of mercury weighs 13.5g.

For reference: The Royal Mail site gives these as examples -

Letter or greeting card - 30g
Standard DL (110mm x 220mm) envelope with 4 sheets of A4 - 44g
CD in bubble envelope - 130g
A4 envelope with 20 sheets of A4 - 160g
Mobile phone in bubble envelope - 180g
DVD in bubble envelope      - 190g
400 page paperback book in bubble envelope - 310g
Pair of jeans - 500g
Glossy magazine in bubble envelope - 585g
Pair of trainers - 1kg

Alcohol is less dense than water, 0.79 g/ml posted by Sardine sounds right but if it's 100 ml of perfume in a lightweight metal container it's not going to weigh anywhere near 327 g, maybe about half that.

To work backwards, you'd need the volume of the perfume, container as in the material it is made from, not what it holds plus any packaging. A thick walled, heavy based glass bottle could weigh a couple of hundred grams then you've got 79 g for 100 ml perfume.

Don't forget the cardboard, I've found some boxes to be surprisingly heavy and have sometimes resorted to trimming off excess cardboard packaging to get the weight of a package under a weight band as it can sometimes save a significant sum when working with multiple packages and tight margins.

Wow. I'm impressed with the level of explanations and just how you people know and understand all this stuff! Think it's all under control now and off to post office later :-)

I'm impressed with the level of explanations and just how you people know and understand all this stuff!

It'll be one of those pesky education things innit.

@biglittlemedium er, yes... I get it now, thanks to the marvellous explanations on here!

If you don't have access to scales, do you have a long wooden ruler or similar?

Make your own balance. long ruler, balanced on a side turned erased in the middle.

Find something in your kitchen of known weight. Put it on one end.
Put perfume bottle on other end.
Move whichever end goes down towards the centre until it balances.

Weight x distance on each side will be equal.

If you have a light container, as you could put that on the end, fill it with water until it balances the perfume at the same distance, then pour water into a measuring jug to see how much you have.
1ml water weighs 1g as previously stated (and 1ml=1cm^3 for interest).