Skip to main content
UnitConvertersGo

Femtograms to Nanograms Converter

Enter the weight in femtograms below to convert it to nanograms.

Convert Femtograms to Nanograms

Enter a value in femtograms (fg) to convert to nanograms (ng).

Result
•
0.000005nanograms
5 fg = 0.000005 ng
Result updates automatically
Get Widget
Equivalent Measurements Across UnitsFor 5 fg
Milligrams5.000000e-12 mg
Grams5.000000e-15 g
Kilograms5.000000e-18 kg
Ounces1.763698e-16 oz
Pounds1.102311e-17 lb
Stones7.873652e-19 st
Suggested Conversions
Reference:NIST OWM (SI Units — Mass)
[1–3] ↓

Femtogram to Nanogram Conversion Table

Table showing various femtogram measurements converted to nanograms. Click any preset value or arrow to load it into the converter.

Femtograms (fg)Nanograms (ng)
1 fg0.000001 ng
10 fg0.00001 ng
100 fg0.0001 ng
1,000 fg0.001 ng
10,000 fg0.01 ng
100,000 fg0.1 ng
1,000,000 fg1 ng
5,000,000 fg5 ng
10,000,000 fg10 ng
25,400,000 fg25.4 ng

How to Convert Femtograms to Nanograms

To convert femtograms to nanograms, multiply the weight by the following conversion ratio: 0.000001 nanograms/femtogram.

Since one femtogram is equal to 0.000001 nanograms, you can use this simple formula to convert:

nanograms = femtograms × 0.000001

The weight in nanograms is equal to the weight in femtograms multiplied by 0.000001.

For example, here's how to convert 5 femtograms to nanograms using the formula above.

nanograms = (5 fg × 0.000001) = 0.000005 ng

How Many Nanograms Are in a Femtogram?

There are 0.000001 nanograms in a femtogram, which is why we use this value in the formula above.

1 fg = 0.000001 ng|1 ng = 1,000,000 fg

Our femtogram to nanogram calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Femtograms and nanograms are both units used to measure weight. Keep reading to learn more about each unit.

What Is a Femtogram?

A femtogram is a unit of weight equal to 1/999,999,999,999,999,900 of a kilogram (1e-18 kg). 10⁻¹⁸ kilograms. [1]

The femtogram is classified as a metric and SI-compatible unit of weight. Femtograms can be abbreviated as fg; for example, 1 femtogram can be written as 1 fg.

In the metric system, "femto" is the standard SI prefix for quadrillionths, or 10⁻¹⁵. This makes the femtogram (fg) a convenient decimal multiple of the gram (g).

In practice, femtograms (fg) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.

What Is a Nanogram?

A nanogram is a unit of weight equal to 1/1,000,000,000,000 of a kilogram (1e-12 kg). One-billionth of a gram (10⁻¹² kg). [2]

The nanogram is classified as a metric and SI-compatible unit of weight. Nanograms can be abbreviated as ng; for example, 1 nanogram can be written as 1 ng.

In the metric system, "nano" is the standard SI prefix for billionths, or 10⁻⁹. This makes the nanogram (ng) a convenient decimal multiple of the gram (g).

In practice, nanograms (ng) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.

When converting weight between femtograms (fg) and nanograms (ng), keep full floating-point precision (1 fg = 0.000001 ng; 1 ng = 1,000,000 fg) during intermediate calculations and round only the final nanogram figure to match your instrument tolerance.

More Femtogram & Nanogram Conversions

Need to calculate in the opposite direction? Use our nanograms to femtograms calculator to switch your starting unit immediately. You can also explore related tools such as converting nanograms to femtograms, converting kilograms to pounds, or converting pounds to kilograms.

Frequently Asked Questions

There are 0.000001 nanograms (ng) in 1 femtogram (fg). Conversely, 1 nanogram (ng) is equal to 1,000,000 femtograms (fg).

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Femtograms (fg) to Nanograms (ng)
    NIST OWM Standard
  2. [2]
    NIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Femtogram (fg) & Nanogram (ng)
    NIST HB 44 Specification
  3. [3]
    BIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (fg to ng)
    BIPM Reference
Measurement Navigator78 Categories9 Scientific Domains

Browse All 78 Measurement Categories