| attometer | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 am | 13 am | 14 am | 15 am | 16 am | 17 am | 18 am | 19 am | 20 am | 21 am | 22 am | 23 am | 24 am | 25 am | 26 am | 27 am | 28 am | 29 am | 30 am | 31 am | 32 am | 33 am | 34 am | 35 am | 36 am | 37 am | 38 am | 39 am | 40 am | 41 am | 42 am | 43 am | 44 am | 45 am | 46 am | 47 am | 48 am | 49 am | 50 am | 51 am | 52 am | 53 am | 54 am | 55 am | 56 am | 57 am | 58 am | 59 am | 60 am | 61 am | 62 am | 63 am | 64 am | 65 am | 66 am | 67 am | 68 am | 69 am | 70 am | 71 am | 72 am | 73 am | 74 am | 75 am | 76 am | 77 am | 78 am | 79 am | 80 am | 81 am | 82 am | 83 am | 84 am | 85 am | 86 am | 87 am | 88 am | 89 am | 90 am | 91 am | 92 am | 93 am | 94 am | 95 am | 96 am | 97 am | 98 am | 99 am | 100 am |
| span | 4.3744531933508 × 10-18 span | 8.7489063867017 × 10-18 span | 1.3123359580052 × 10-17 span | 1.7497812773403 × 10-17 span | 2.1872265966754 × 10-17 span | 2.6246719160105 × 10-17 span | 3.0621172353456 × 10-17 span | 3.4995625546807 × 10-17 span | 3.9370078740157 × 10-17 span | 4.3744531933508 × 10-17 span | 4.8118985126859 × 10-17 span | 5.249343832021 × 10-17 span | 5.6867891513561 × 10-17 span | 6.1242344706912 × 10-17 span | 6.5616797900262 × 10-17 span | 6.9991251093613 × 10-17 span | 7.4365704286964 × 10-17 span | 7.8740157480315 × 10-17 span | 8.3114610673666 × 10-17 span | 8.7489063867017 × 10-17 span | 9.1863517060367 × 10-17 span | 9.6237970253718 × 10-17 span | 1.0061242344707 × 10-16 span | 1.0498687664042 × 10-16 span | 1.0936132983377 × 10-16 span | 1.1373578302712 × 10-16 span | 1.1811023622047 × 10-16 span | 1.2248468941382 × 10-16 span | 1.2685914260717 × 10-16 span | 1.3123359580052 × 10-16 span | 1.3560804899388 × 10-16 span | 1.3998250218723 × 10-16 span | 1.4435695538058 × 10-16 span | 1.4873140857393 × 10-16 span | 1.5310586176728 × 10-16 span | 1.5748031496063 × 10-16 span | 1.6185476815398 × 10-16 span | 1.6622922134733 × 10-16 span | 1.7060367454068 × 10-16 span | 1.7497812773403 × 10-16 span | 1.7935258092738 × 10-16 span | 1.8372703412073 × 10-16 span | 1.8810148731409 × 10-16 span | 1.9247594050744 × 10-16 span | 1.9685039370079 × 10-16 span | 2.0122484689414 × 10-16 span | 2.0559930008749 × 10-16 span | 2.0997375328084 × 10-16 span | 2.1434820647419 × 10-16 span | 2.1872265966754 × 10-16 span | 2.2309711286089 × 10-16 span | 2.2747156605424 × 10-16 span | 2.3184601924759 × 10-16 span | 2.3622047244094 × 10-16 span | 2.405949256343 × 10-16 span | 2.4496937882765 × 10-16 span | 2.49343832021 × 10-16 span | 2.5371828521435 × 10-16 span | 2.580927384077 × 10-16 span | 2.6246719160105 × 10-16 span | 2.668416447944 × 10-16 span | 2.7121609798775 × 10-16 span | 2.755905511811 × 10-16 span | 2.7996500437445 × 10-16 span | 2.843394575678 × 10-16 span | 2.8871391076115 × 10-16 span | 2.9308836395451 × 10-16 span | 2.9746281714786 × 10-16 span | 3.0183727034121 × 10-16 span | 3.0621172353456 × 10-16 span | 3.1058617672791 × 10-16 span | 3.1496062992126 × 10-16 span | 3.1933508311461 × 10-16 span | 3.2370953630796 × 10-16 span | 3.2808398950131 × 10-16 span | 3.3245844269466 × 10-16 span | 3.3683289588801 × 10-16 span | 3.4120734908136 × 10-16 span | 3.4558180227472 × 10-16 span | 3.4995625546807 × 10-16 span | 3.5433070866142 × 10-16 span | 3.5870516185477 × 10-16 span | 3.6307961504812 × 10-16 span | 3.6745406824147 × 10-16 span | 3.7182852143482 × 10-16 span | 3.7620297462817 × 10-16 span | 3.8057742782152 × 10-16 span | 3.8495188101487 × 10-16 span | 3.8932633420822 × 10-16 span | 3.9370078740157 × 10-16 span | 3.9807524059493 × 10-16 span | 4.0244969378828 × 10-16 span | 4.0682414698163 × 10-16 span | 4.1119860017498 × 10-16 span | 4.1557305336833 × 10-16 span | 4.1994750656168 × 10-16 span | 4.2432195975503 × 10-16 span | 4.2869641294838 × 10-16 span | 4.3307086614173 × 10-16 span | 4.3744531933508 × 10-16 span |
An attometer is a unit of length, a combination of the metric prefix atto (symbol a) and the SI unit of length meter (symbol m), equal to 10−18 meter or 1.0E-18 meter and its symbol is am. Plural name is attometers.
| 1 attometers = 4.3744531933508E-18 spans | 4 attometers = 1.7497812773403E-17 spans |
| 1.5 attometers = 6.5616797900262E-18 spans | 4.5 attometers = 1.9685039370079E-17 spans |
| 2 attometers = 8.7489063867017E-18 spans | 5 attometers = 2.1872265966754E-17 spans |
| 2.5 attometers = 1.0936132983377E-17 spans | 5.5 attometers = 2.405949256343E-17 spans |
| 3 attometers = 1.3123359580052E-17 spans | 6 attometers = 2.6246719160105E-17 spans |
A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times, a span was considered to be half a cubit. Sometimes the distinction is made between the great span (thumb to little finger) and little span (index finger to little finger).
| 1 spans = 2.286E+17 attometers | 4 spans = 9.144E+17 attometers |
| 1.5 spans = 3.429E+17 attometers | 4.5 spans = 1.0287E+18 attometers |
| 2 spans = 4.572E+17 attometers | 5 spans = 1.143E+18 attometers |
| 2.5 spans = 5.715E+17 attometers | 5.5 spans = 1.2573E+18 attometers |
| 3 spans = 6.858E+17 attometers | 6 spans = 1.3716E+18 attometers |
| 1 attometers = 4.3744531933508 × 10-18 spans |
| 1 spans = 2.286 × 1017 attometers |