Hindustani numerals
Like many Indo-Aryan languages, Hindustani 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, sifr | ek | do | tīn | cār | pāñc | chah | sāt | āṭh | nau |
| 10–19 | das | gyārah | bāra | tera | cauda | pandra | sola | satra | aṭhāra | unnīs |
| 20–29 | bīs | ikkīs | bāīs | teīs | caubīs | paccīs | chabbīs | sattāīs | aṭṭhāīs | 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 | saṛsaṭh | aṛsaṭh | unhattar |
| 70–79 | sattar | ik.hattar | bahattar | tihattar | cauhattar | pac.hattar | chihattar | sat.hattar | aṭhhattar | unāsī |
| 80–89 | assī | ikyāsī | bayāsī | tirāsī | caurāsī | pacāsī | chiyāsī | sattāsi | aṭṭhāsī | navāsī |
| 90–99 | nabbe, navve | ikyānve | bānve | tirānve | caurānve | pacānve | chiyānve | sattānve | aṭṭhānve | ninānve |
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, kroṛ 1,00,00,000, arab 1,00,00,00,000, kharab 1,00,00,00,00,000, nīl 1,00,00,00,00,00,000, padma 1,00,00,00,00,00,00,000. Lakh and crore are common enough to have entered Indian English.
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.
