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 |
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 | Urdu: ۰ | Urdu: ۱ | Urdu: ۲ | Urdu: ۳ | Urdu: ۴ | Urdu: ۵ | Urdu: ۶ | Urdu: ۷ | Urdu: ۸ | Urdu: ۹ |