Troy ounce to Nanogram Converter (and vice versa)

Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026

This converter allows you to convert troy ounces [oz.tr.] to nanograms [ng] or nanograms [ng] to troy ounces [oz.tr.]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.

1 troy ounce [oz.tr.] ≈ 3.11 * 1010 nanograms [ng]1 nanogram [ng] ≈ 3.215 * 10-11 troy ounces [oz.tr.]

Convert troy ounces to nanograms

There are two simple ways to convert troy ounces [oz.tr.] to nanograms [ng]. In the first calculation method, the value in troy ounces [oz.tr.] is divided by the rounded conversion factor of 3.215 * 10-11. The second method multiplies the value in troy ounces [oz.tr.] by the rounded conversion factor of 3.11 * 1010.

  • Nanograms [ng] ≈ troy ounces [oz.tr.] ÷ (3.215 * 10-11)
  • Nanograms [ng] ≈ troy ounces [oz.tr.] * 3.11 * 1010

However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of troy ounces [oz.tr.] to nanograms [ng] can be achieved using the following calculation method.

  • Nanograms [ng] = troy ounces [oz.tr.] * 31.1034768 * 109

Convert nanograms to troy ounces

Converting nanograms [ng] to troy ounces [oz.tr.] is easy and can be done in two ways. The first method involves multiplication, in which the value in nanograms [ng] is multiplied by the rounded conversion factor of 3.215 * 10-11. The second variant is a division. Here, the value in nanograms [ng] is divided by the rounded conversion factor of 3.11 * 1010.

  • Troy ounces [oz.tr.] ≈ nanograms [ng] * 3.215 * 10-11
  • Troy ounces [oz.tr.] ≈ nanograms [ng] ÷ (3.11 * 1010)

However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of nanograms [ng] to troy ounces [oz.tr.] can be achieved using the following calculation method.

  • Troy ounces [oz.tr.] = nanograms [ng] ÷ 31.1034768 ÷ 109

Converter

Decimal places

How it's calculated

Factor: 
≈ 3.11 * 1010
Nanograms = Troy ounces * 31.1034768 * 109
Troy ounces = Nanograms ÷ 31.1034768 ÷ 109

To all available units

Troy ounces

Picograms

Troy ounces

Short hundredweights

Troy ounces

Short tons

Troy ounces

Stone

Carats

Centigrams

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