Dram to Nanogram Converter

Mass Converter

26 units available

Decimals:

From

To

1,771,845,195.3125

1 dr = 1,771,845,195.3125 ng

Formula:

ng = dr × 1.771845e+9

With your value: 1 dr = 1,771,845,195.3124998 ng

How big is that?

Everyday references on a logarithmic scale, all expressed in dram so you can sanity-check the result.

Paperclip (1/1.8 your value)0.564 dr

Your value1.00 dr

AA battery (14× your value)13.5 dr

Can of soda (2.2e+2× your value)220 dr

Bag of sugar (5.6e+2× your value)564 dr

House cat (2.5e+3× your value)2.54e+3 dr

Other Dram to Nanogram conversions

2 dr to ng 3 dr to ng 4 dr to ng 5 dr to ng 6 dr to ng 7 dr to ng 8 dr to ng

Dram to Nanogram Conversion Table

Dram (dr)	Nanogram (ng)
0.5	885,922,597.65625
1	1,771,845,195.3125
2	3,543,690,390.625
5	8,859,225,976.562502
10	17,718,451,953.125004
15	26,577,677,929.6875
20	35,436,903,906.25001
25	44,296,129,882.81249
50	88,592,259,765.62498
100	177,184,519,531.24997
250	442,961,298,828.125
500	885,922,597,656.25
1000	1.771845e+12

Nanogram to Dram Conversion Table

Nanogram (ng)	Dram (dr)
0.5	2.821917e-10
1	5.643834e-10
2	1.128767e-9
5	2.821917e-9
10	5.643834e-9
15	8.465751e-9
20	1.128767e-8
25	1.410958e-8
50	2.821917e-8
100	5.643834e-8
250	1.410958e-7
500	2.821917e-7
1000	5.643834e-7

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Dram (dr)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Nanogram (ng)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Dram to Nanogram

To convert from Dram (dr) to Nanogram (ng), multiply the value by 1,771,845,195.3125.

Formula: ng = dr × 1.771845e+9

Reverse: dr = ng × 5.643834e-10

Step-by-Step Example

Start with your value in Dram. For example: 5 dr
Multiply by the conversion factor: 5 x 1,771,845,195.3125
The result is: 8,859,225,976.562502 ng

About Dram

The dram (dr) is a unit of mass and weight. One dram equals 0.001771845195 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: mass calculations, engineering and science, education.

About Nanogram

The nanogram (ng) is a unit of mass and weight. One nanogram equals 1.000000 × 10^-12 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: mass calculations, engineering and science, education.

Frequently Asked Questions

How many Nanogram are in 1 Dram?

There are exactly 1,771,845,195.3125 Nanogram in 1 Dram. This means the conversion factor from Dram to Nanogram is 1,771,845,195.3125.

What is the formula to convert Dram to Nanogram?

The formula to convert Dram to Nanogram is: ng = dr × 1.771845e+9. For example, to convert 10 Dram to Nanogram, you would multiply 10 by 1,771,845,195.3125.

What is a Dram?