पार्सल का वज़न एक किलो है; डाक शुल्क ज़्यादा नहीं है।

का is the genitive marker, often equivalent to English of or 's.

So:

• पार्सल का वज़न = the parcel's weight
• literally: weight of the parcel

This is a very common Hindi pattern:

• राम का घर = Ram's house
• किताब का रंग = the book's color

In this sentence, पार्सल का वज़न is the subject-like noun phrase: the parcel's weight.

Because का / की / ke agrees with the noun that comes after it, not with the possessor.

Here, the possessed noun is वज़न (weight), which is masculine singular, so Hindi uses का:

• पार्सल का वज़न

Compare:

• पार्सल की कीमत = the parcel's price
  because कीमत is feminine
• पार्सल के कागज़ = the parcel's papers
  because कागज़ is plural

So the form depends on वज़न, not on पार्सल.

वज़न means weight. It is a very common everyday word.

So:

• पार्सल का वज़न = the parcel's weight

You may also see वजन written without the dot under ज़. Both spellings are common in practice:

• वज़न
• वजन

Another more formal or literary word is भार, but वज़न is much more natural in everyday speech for most learners.

Because किलो is the normal everyday way to say kilogram in Hindi, just as English speakers often say a kilo instead of a kilogram.

So:

• एक किलो = one kilo / one kilogram

This is completely natural.

You could say एक किलोग्राम, but that sounds more formal or technical.

This is a very standard Hindi equational sentence:

• वज़न = weight
• एक किलो = one kilo
• है = is

So:

• पार्सल का वज़न एक किलो है
  = The parcel's weight is one kilo

Hindi often forms simple X is Y sentences in exactly this way:

• यह किताब अच्छी है = This book is good
• मेरा कमरा बड़ा है = My room is big
• उसकी उम्र दस साल है = His/Her age is ten years

डाक शुल्क means postal charge, postage fee, or mailing fee.

Breakdown:

• डाक = post, mail
• शुल्क = charge, fee

So together:

• डाक शुल्क = postage / postal fee

This sounds a bit formal or official. In everyday conversation, people might also use expressions like:

• डाक-खर्च
• पोस्टेज (from English, in some contexts)
• भेजने का खर्च = the cost of sending it

But डाक शुल्क is perfectly correct and clear.

Here ज़्यादा नहीं है means is not much, is not high, or is not too much.

So:

• डाक शुल्क ज़्यादा नहीं है
  = The postage fee is not high = The postage isn't much

ज़्यादा literally means more or too much / a lot, depending on context.

In this sentence, it does not mean a comparison like more than something else. Instead, it means the amount is not large.

In Hindi, नहीं usually comes before the verb or before the element being negated.

So:

• ज़्यादा नहीं है = is not much / is not high

This is the normal word order.

Compare:

• वह यहाँ नहीं है = He/She is not here
• यह आसान नहीं है = This is not easy
• मेरे पास समय नहीं है = I do not have time

So the placement of नहीं in this sentence is exactly what you should expect.

Not always. In modern Hindi, many people write and say:

• ज़्यादा
• ज्यादा

Both are very common.

The version with ज़ reflects a z-like sound, while many speakers simply pronounce it closer to j. The same thing happens with वज़न / वजन.

As a learner, you should recognize both spellings. If you say ज्यादा or ज़्यादा, most people will understand you.

The semicolon links two closely related statements:

• पार्सल का वज़न एक किलो है
• डाक शुल्क ज़्यादा नहीं है

It shows that the two ideas belong together.

In ordinary Hindi writing, you could also simply use:

• a full stop: ... है। डाक शुल्क ...
• a comma in some informal contexts
• और = and

For example:

• पार्सल का वज़न एक किलो है और डाक शुल्क ज़्यादा नहीं है।

So the semicolon is a punctuation choice, not a special grammar rule.

Yes. In natural English, The parcel weighs one kilo is often the smoother translation.

But the Hindi structure here is literally closer to:

• The parcel's weight is one kilo

Hindi commonly expresses this idea through the noun वज़न (weight) rather than with a verb equivalent to English weigh.

So both English translations work:

• The parcel's weight is one kilo
• The parcel weighs one kilo

It is mostly neutral, but डाक शुल्क makes it sound a little more formal or official.

Parts of the sentence by register:

• पार्सल = very normal, common
• वज़न = normal, common
• एक किलो है = normal, common
• डाक शुल्क = slightly formal
• ज़्यादा नहीं है = normal, everyday

A more conversational version might be something like:

• पार्सल का वज़न एक किलो है; डाक का खर्च ज़्यादा नहीं है।

But the original sentence is perfectly good Hindi.

A little, yes, but the original order is very natural.

Original:

• पार्सल का वज़न एक किलो है; डाक शुल्क ज़्यादा नहीं है।

Possible variation:

• डाक शुल्क ज़्यादा नहीं है; पार्सल का वज़न एक किलो है।

That changes the emphasis, because now the sentence starts with the postage fee.

You could also say:

• एक किलो पार्सल का वज़न है — but this sounds much less natural in ordinary usage.

So while Hindi does allow some flexibility, the given word order is the clearest and most standard here.