| femtogram | 1 fg | 2 fg | 3 fg | 4 fg | 5 fg | 6 fg | 7 fg | 8 fg | 9 fg | 10 fg | 11 fg | 12 fg | 13 fg | 14 fg | 15 fg | 16 fg | 17 fg | 18 fg | 19 fg | 20 fg | 21 fg | 22 fg | 23 fg | 24 fg | 25 fg | 26 fg | 27 fg | 28 fg | 29 fg | 30 fg | 31 fg | 32 fg | 33 fg | 34 fg | 35 fg | 36 fg | 37 fg | 38 fg | 39 fg | 40 fg | 41 fg | 42 fg | 43 fg | 44 fg | 45 fg | 46 fg | 47 fg | 48 fg | 49 fg | 50 fg | 51 fg | 52 fg | 53 fg | 54 fg | 55 fg | 56 fg | 57 fg | 58 fg | 59 fg | 60 fg | 61 fg | 62 fg | 63 fg | 64 fg | 65 fg | 66 fg | 67 fg | 68 fg | 69 fg | 70 fg | 71 fg | 72 fg | 73 fg | 74 fg | 75 fg | 76 fg | 77 fg | 78 fg | 79 fg | 80 fg | 81 fg | 82 fg | 83 fg | 84 fg | 85 fg | 86 fg | 87 fg | 88 fg | 89 fg | 90 fg | 91 fg | 92 fg | 93 fg | 94 fg | 95 fg | 96 fg | 97 fg | 98 fg | 99 fg | 100 fg |
| carat | 5.0 × 10-15 ct | 1.0 × 10-14 ct | 1.5 × 10-14 ct | 2.0 × 10-14 ct | 2.5 × 10-14 ct | 3.0 × 10-14 ct | 3.5 × 10-14 ct | 4.0 × 10-14 ct | 4.5 × 10-14 ct | 5.0 × 10-14 ct | 5.5 × 10-14 ct | 6.0 × 10-14 ct | 6.5 × 10-14 ct | 7.0 × 10-14 ct | 7.5 × 10-14 ct | 8.0 × 10-14 ct | 8.5 × 10-14 ct | 9.0 × 10-14 ct | 9.5 × 10-14 ct | 1.0 × 10-13 ct | 1.05 × 10-13 ct | 1.1 × 10-13 ct | 1.15 × 10-13 ct | 1.2 × 10-13 ct | 1.25 × 10-13 ct | 1.3 × 10-13 ct | 1.35 × 10-13 ct | 1.4 × 10-13 ct | 1.45 × 10-13 ct | 1.5 × 10-13 ct | 1.55 × 10-13 ct | 1.6 × 10-13 ct | 1.65 × 10-13 ct | 1.7 × 10-13 ct | 1.75 × 10-13 ct | 1.8 × 10-13 ct | 1.85 × 10-13 ct | 1.9 × 10-13 ct | 1.95 × 10-13 ct | 2.0 × 10-13 ct | 2.05 × 10-13 ct | 2.1 × 10-13 ct | 2.15 × 10-13 ct | 2.2 × 10-13 ct | 2.25 × 10-13 ct | 2.3 × 10-13 ct | 2.35 × 10-13 ct | 2.4 × 10-13 ct | 2.45 × 10-13 ct | 2.5 × 10-13 ct | 2.55 × 10-13 ct | 2.6 × 10-13 ct | 2.65 × 10-13 ct | 2.7 × 10-13 ct | 2.75 × 10-13 ct | 2.8 × 10-13 ct | 2.85 × 10-13 ct | 2.9 × 10-13 ct | 2.95 × 10-13 ct | 3.0 × 10-13 ct | 3.05 × 10-13 ct | 3.1 × 10-13 ct | 3.15 × 10-13 ct | 3.2 × 10-13 ct | 3.25 × 10-13 ct | 3.3 × 10-13 ct | 3.35 × 10-13 ct | 3.4 × 10-13 ct | 3.45 × 10-13 ct | 3.5 × 10-13 ct | 3.55 × 10-13 ct | 3.6 × 10-13 ct | 3.65 × 10-13 ct | 3.7 × 10-13 ct | 3.75 × 10-13 ct | 3.8 × 10-13 ct | 3.85 × 10-13 ct | 3.9 × 10-13 ct | 3.95 × 10-13 ct | 4.0 × 10-13 ct | 4.05 × 10-13 ct | 4.1 × 10-13 ct | 4.15 × 10-13 ct | 4.2 × 10-13 ct | 4.25 × 10-13 ct | 4.3 × 10-13 ct | 4.35 × 10-13 ct | 4.4 × 10-13 ct | 4.45 × 10-13 ct | 4.5 × 10-13 ct | 4.55 × 10-13 ct | 4.6 × 10-13 ct | 4.65 × 10-13 ct | 4.7 × 10-13 ct | 4.75 × 10-13 ct | 4.8 × 10-13 ct | 4.85 × 10-13 ct | 4.9 × 10-13 ct | 4.95 × 10-13 ct | 5.0 × 10-13 ct |
Femtogram or femtogramme is equal to 10-15 gram (unit of mass), comes from a combination of the metric prefix femto (f) with the gram (g). Plural name is femtograms.
| 1 femtograms ≡ 5.0E-15 carats | 11 femtograms ≡ 5.5E-14 carats |
| 2.5 femtograms ≡ 1.25E-14 carats | 12.5 femtograms ≡ 6.25E-14 carats |
| 4 femtograms ≡ 2.0E-14 carats | 14 femtograms ≡ 7.0E-14 carats |
| 5.5 femtograms ≡ 2.75E-14 carats | 15.5 femtograms ≡ 7.75E-14 carats |
| 7 femtograms ≡ 3.5E-14 carats | 17 femtograms ≡ 8.5E-14 carats |
| 8.5 femtograms ≡ 4.25E-14 carats | 18.5 femtograms ≡ 9.25E-14 carats |
| 10 femtograms ≡ 5.0E-14 carats | 20 femtograms ≡ 1.0E-13 carats |
The carat (ct) is a unit of mass equal to 200 mg (0.2 g; 0.007055 oz) and is used for measuring gemstones and pearls.
| 1 carats ≡ 2.0E+14 femtograms | 11 carats ≡ 2.2E+15 femtograms |
| 2.5 carats ≡ 5.0E+14 femtograms | 12.5 carats ≡ 2.5E+15 femtograms |
| 4 carats ≡ 8.0E+14 femtograms | 14 carats ≡ 2.8E+15 femtograms |
| 5.5 carats ≡ 1.1E+15 femtograms | 15.5 carats ≡ 3.1E+15 femtograms |
| 7 carats ≡ 1.4E+15 femtograms | 17 carats ≡ 3.4E+15 femtograms |
| 8.5 carats ≡ 1.7E+15 femtograms | 18.5 carats ≡ 3.7E+15 femtograms |
| 10 carats ≡ 2.0E+15 femtograms | 20 carats ≡ 4.0E+15 femtograms |
| 1 femtograms ≡ 5.0 × 10-15 carats |
| 1 carats ≡ 2.0 × 1014 femtograms |