The mystery of ........."nanti kalau"

I hear Indonesians say this all the time........nanti kalau ......< + second sentence>

1) I understand if you just say kalau = if
But what about when it is nanti kalau. Boleh minta beberapa contoh?

"nanti kalau", it is like a future conditional sentence.

As you know the meaning of "kalau = if" which indicates the conditional argument, and "nanti = later" which indicates the future tense. But in English, you do not have to write the word "later" in a future conditional sentence, because the word "later" is conveyed by "will" in the sentence. Thus, I will put "later" in a bracket in the following examples.

Let's see the examples:

A: Kapan kita pergi ke Bali? (When will we go to Bali?)

B: Nanti kalau saya sudah punya cukup uang, kita akan pergi ke Bali. [(Later) If I have enough money, we will go to Bali]

- Saya akan makan nanti kalau saya lapar. [I will eat (later), if I am hungry)

- Kita tidak akan tiba tepat waktu nanti kalau kamu menyetir dengan lambat. [We will not arrive on time (later) if you drive slowly)

(Example in a situation: When you have an appointment with your friend at a cinema.)

A: Nanti kalau kamu tiba di bioskop, tolong beritahu saya.  [(Later) If you arrive at the cinema, please inform me.]

B: Oke. Saya akan beritahu kamu ketika saya tiba di bioskop. [Ok. I will let you know when I arrive at the cinema.]

And... sometimes you may hear Indonesian say "nanti kalau" separately in a sentence. 

Example: 

Kalau saya memiliki hari libur, saya akan mengunjungi kamu nanti. [If I have a day off, I will visit you (later)] 

2) Does the word Kalau = Jika = if
Are they interchangeable or do they mean very different things?

Yes, "kalau" and "jika are interchangeable. They have the same meaning, if. 

Haha, the mystery of "nanti kalau"... Yeah, you're right.. many words in bahasa can't be translated, one of them is "nanti kalau". Actually I don't know exactly "nanti kalau" translated in English.. but, it's not a word or sentence, it's more like conditional clauses/hypotheses, "nanti kalau" is informal, the formal way is "jika nanti".. so, the question is, how to use it? "Nanti kalau" or "jika nanti".. I think, you can translate it into "if"...  "kalau nanti" needs 2 clauses, like dependent and independent clause... And we usually use it to suggestions what might happen. (cmiiw)

I hear Indonesians say this all the time........nanti kalau ......< second sentence>

1) I understand if you just say kalau = if
But what about when it is nanti kalau. Boleh minta beberapa contoh?

Example:
- Nanti kalau kita undang John, Marry akan mengajak Angela.

If we invited John, Marry would bring Angela.

- Saya akan main kerumahmu, nanti kalau hari selasa ini tidak hujan.

I will go to your home, if it doesn't rain this tuesday

Also, you can find it in interrogative sentences..

- Kapan kamu akan menikah? Nanti kalau sudah cukup uang..

When will you get married? If I have enough money... Or, later.. if I have enough money..


2) Does the word Kalau = Jika = if
Are they interchangeable or do they mean very different things?

Yeah, it's interchangeable.. both, have similar meaning... Also, both are use as conjunction .. but, "jika" is commonly use in formal situation ..

Conclusion: "Nanti kalau" has same meaning to "if".. but, it's depend on the context.. you can use "Nanti kalau" to suggest what might happen.. / hypotheses..

I hope you can understand my explanation.. sorry for my bad English :( 

The mystery of ........."nanti kalau"

I hear Indonesians say this all the time........nanti kalau ......< + second sentence>

1) I understand if you just say kalau = if
But what about when it is nanti kalau. Boleh minta beberapa contoh?

nanti = later ; kalau = if . So 'nanti kalau' is "later if"

ex : 'Nanti kalau kamu sudah selesai kerja.' ---> "later if you have finished work."

       'Nanti kalau ada yang tidak kamu mengerti.' ---> "later if you have something you don't understand."

       'Nanti kalau kita sudah sampai, tolong beritahu saya.' ---> "later if we had arrived, please tell me."

2) Does the word Kalau = Jika = if
Are they interchangeable or do they mean very different things?

Yes, they are interchangeable.