Hindustani numerals

Like many Indo-Aryan languages, Hindustani (Hindi-Urdu) has a decimal numeral system that is contracted to the extent that nearly every number 1–99 is irregular, and needs to be memorized as a separate numeral.

	+0	+1	+2	+3	+4	+5	+6	+7	+8	+9
+0	śūnya, sifr	ek	do	tīn	cār	pāṅc	chaḥ	sāt	āṭh	nau
+10	das	gyārah	bārah	terah	caudah	pandrah	solah	satrah	aṭhārah	unnīs
+20	bīs	ikkīs	bāīs	teīs	caubīs	paccīs	chabbīs	sattāīs	aṭṭhāīs	untīs
+30	tīs	ikattīs	battīs	taiṅtīs	cauṅtīs	paiṅtīs	chattīs	saiṅtīs	aṛtīs	untālīs
+40	cālīs	iktālīs	bayālīs	taiṅtālīs	cavālīs	paiṅtālīs	chiyālīs	saiṅtālīs	aṛtālīs	uncās
+50	pacās	ikyāvan, ikāvan	bāvan	tirpan	cauvan	pacpan	chappan	sattāvan	aṭṭhāvan	unsaṭh
+60	sāṭh	iksaṭh	bāsaṭh	tirsaṭh	cauṅsaṭh	paiṅsaṭh	chiyāsaṭh	saṛsaṭh	aṛsaṭh	unhattar
+70	sattar	ik'hattar	bahattar	tihattar	cauhattar	pac'hattar	chihattar	sat'hattar	aṭhhattar	unāsī
+80	assī	ikyāsī, ikāsī	bayāsī	tirāsī	caurāsī	pacāsī	chiyāsī	sattāsi	aṭṭhāsī	navāsī
+90	nabbe, navve	ikyānve, ikānve	bānve, bayānve	tirānve	caurānve	pacānve	chiyānve	sattānve	aṭṭhānve	ninyānve

Numbers from 100 up are more regular. There are numerals for 100, sau; 1,000, hazār; and successive multiples by 100 of 1000: lākh (lakh) 100,000 (10⁵), karoṛ (crore) 1,00,00,000 (10⁷), arab 1,00,00,00,000 (10⁹, billion), kharab 1,00,00,00,00,000 (10¹¹), nīl 1,00,00,00,00,00,000 (10¹³), padma 1,00,00,00,00,00,00,000 (10¹⁵, quadrillion). (See Indian numbering system.) Lakh and crore are common enough to have entered Indian English.

For number 0, Modern Standard Hindi is more inclined towards śūnya (a Sanskrit tatsama) and Standard Urdu is more inclined towards sifr (borrowed from Arabic), while the native tadbhava-form is sunnā in Hindustani. Sometimes the ardha-tatsama form śūn is also used (semi-learned borrowing). Colloquially in Hinglish/Urdish, it is simply referred as jīro/zīro (from English zero).

In writing Hindi, numbers are usually represented using Devanagari numeral signs, while in Urdu the signs employed are those of a modified Eastern Arabic numeral system.

Arabic	0	1	2	3	4	5	6	7	8	9
Hindi	०	१	२	३	४	५	६	७	८	९
Urdu	۰	۱	۲	۳	۴	۵	۶	۷	۸	۹