(それは)グラムではいくらですか？
How much is it in grams?
グラムではいくらですか？
How long is it in meters?
それメーターだとどれくらいの距離/長さですか？
1ポンドは大体450gです。
A pounds is more or less 450grams.
1フィートは大体30cmです。(複数ならfeet)
A foot is more or less 30cm.
*大体=more or less
In order to check the metric or imperial value of something, you can ask:
How many grams is that?
How much is that in grams?
How many litres is that?
How much is that in litres?
I hope that helps!
数量や帝国単位（かつてイギリスの度量衡法で定められた単位）の量を尋ねるには、このように聞くことができます。
How many grams is that?
How much is that in grams?
How many litres is that?
How much is that in litres?
参考になればうれしいです！
>Can you covert the pounds to gram for me please?
*convert=to change the form. This is asking to change the from from pound to grams.
>What would the amount be in Grams for this item.
This is asking what would the weight be in grams for the specific item.
Can you covert the pounds to gram for me please?
*convert=単位を変える事を意味します。
ポンドからグラムへ単位を変える事を尋ねる表現です。
What would the amount be in Grams for this item.
特定の商品のグラムでの重さを尋ねる時の表現です。
I'm sorry I don't understand imperial units. Do you know what that is in grams?"
Imperial units
= Most countries use the Metric System, which uses the measuring units such as meters and grams and adds prefixes like kilo, milli and centi to count orders of magnitude.
In the United States, they use the older Imperial system, where things are measured in feet, inches and pounds and pints.
"Bananas! Bananas!, twenty cents a pound!"
"I'm sorry I don't understand imperial units. Do you know what that is in grams?"
"Yes, a pound is about half a kilo.;"
"Thanks!"
Imperial units = 多くの国はメートル、グラム法を使っているでしょう、 USでは、フィートやインチ、ポンドやピントなど古い単位を使っています。
例
"Bananas! Bananas!, twenty cents a pound!"
バナナ、バナナ、1ポンド20セントだよ。
"I'm sorry I don't understand imperial units. Do you know what that is in grams?"
ごめんなさい。イギリスの単位がわからないんです。グラムだといくらになりますか？
"Yes, a pound is about half a kilo.;"
はい、大体1ポンドは500グラムです。
"Thanks!"
ありがとう。
What is the equivalence to grams?- Equivalence means how many grams are equal to X pounds.
Therefore you want to how many grams are equal to X pounds.
How many grams is X pounds?- This is a direct question.
What is the equivalence to grams?
Equivalenceとは、同等のという意味で、この場合Xポンドが何グラムに等しいのかを尋ねることができます。
例：How many grams is X pounds?
Xパウンドは何グラムですか？
これは分かりやすい質問ですね。
日本 
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