As with many Indic 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 0–9 | śūnya | ek | do | tīn | cār | pāṁc | chah | sāt | āṭh | nau |
| 10–19 | das | gyārah | bārah | terah | caudah | pandrah | solah | satrah | aṭhārah | unnīs |
| 20–29 | bīs | ikkīs | bāīs | teīs | caubīs | paccīs | chabbīs | sattāīs | aṭṭāīs | untīs |
| 30–39 | tīs | ikattīs | battīs | taiṁtīs | cauṁtīs | paiṁtīs | chattīs | saiṁtīs | aṛtīs | untālīs |
| 40–49 | cālīs | iktālīs | bayālīs | taiṁtālīs | cavālīs | paiṁtālīs | chiyālīs | saiṁtālīs | aṛtālīs | uncās |
| 50–59 | pacās | ikyāvan | bāvan | tirpan | cauvan | pacpan | chappan | sattāvan | aṭṭhāvan | unsaṭh |
| 60–69 | sāṭh | iksaṭh | bāsaṭh | tirsaṭh | cauṁsaṭh | paiṁsaṭh | chiyāsaṭh | sarsaṭh | aṛsaṭh | unhattar |
| 70–79 | sattar | ikhattar | bahattar | tihattar | cauhattar | pachattar | chihattar | sathattar | aṭhhattar | unyāsī |
| 80–89 | assī | ikyāsī | bayāsī | tirāsī | caurāsī | pacāsī | chiyāsī | sattāsi | aṭṭhāsī | navāsī |
| 90–99 | nave | ikyānve | bānve | 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 1,00,000 (10⁵), kroṛ 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.