Mass and Weight · Unit Converter

Convert Point (1/100 carat) to Femtogram

Convert points (1/100 carat) to femtograms instantly. 1 point (1/100 carat) = 2e+12 femtogram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Femtogram to Point (1/100 carat) converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Troy & Apothecary

Point (1/100 carat)

What is a point (1/100 carat)?

A point equals one-hundredth of a carat, or 2 milligrams.

Origin of the point (1/100 carat)

A subdivision of the metric carat for very small stones.

Where it is used

The diamond trade, for sub-carat stones.

When and where it was developed

Adopted alongside the metric carat in the 20th-century gem trade.

Metric / SI

Femtogram

What is a femtogram?

A femtogram (fg) equals 10^-18 kilogram.

Origin of the femtogram

From the SI prefix 'femto-' (from Danish/Norwegian 'femten', fifteen).

Where it is used

Nanotechnology and high-sensitivity mass spectrometry.

When and where it was developed

The femto- prefix was adopted by the CGPM in 1975.

Point (1/100 carat) to Femtogram conversion formula

The relationship between points (1/100 carat) and femtograms:

1 pt = 2e+12 fg
1 fg = 5e-13 pt

To convert points (1/100 carat) to femtograms, multiply the value in points (1/100 carat) by 2e+12. To reverse, multiply femtograms by 5e-13.

How to use this converter

Type a value into the calculator. The result in femtograms updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Femtogram to Point (1/100 carat) converter for the reverse direction.

Step-by-step: convert points (1/100 carat) to femtograms

  1. Write down the value in points (1/100 carat) (pt).
  2. Multiply that value by the factor 2e+12.
  3. The product is the equivalent value in femtograms (fg).
  4. To reverse, multiply the femtogram value by 5e-13.

Worked examples

Example 1 — Convert 1 pt to fg:
1 × 2e+12 = 2e+12 fg

Example 2 — Convert 100 pt to fg:
100 × 2e+12 = 2e+14 fg

Real-world example — Infrared to visible-spectrum mapping

A 10-point (1/100 carat) thermal infrared wavelength corresponds to a much larger number in femtograms, the unit favoured for ultraviolet and visible-light specifications.

10 pt × 2e+12 = 2e+13 fg

Real-world example — Mid-micron to nanometer

3 points (1/100 carat) equals 3,000 femtograms — useful when relating mid-infrared wavelengths (typically quoted in microns) to nanometer-scale visible-light wavelength tables.

3 pt × 2e+12 = 6e+12 fg

Real-world example — From microns to sub-micron features

One point (1/100 carat) equals one thousand femtograms — the conversion semiconductor designers do constantly when comparing mask feature dimensions to actual transistor gate lengths.

1 pt × 2e+12 = 2e+12 fg

Point (1/100 carat) to Femtogram conversion table

Standard reference values for converting points (1/100 carat) to femtograms:

Point (1/100 carat) [pt]Femtogram [fg]
0.012e+10
0.12e+11
12e+12
24e+12
36e+12
48e+12
51e+13
102e+13
204e+13
306e+13
408e+13
501e+14
1002e+14
5001e+15
10002e+15

Frequently asked questions

How many femtograms is 1 point (1/100 carat)?
1 point (1/100 carat) equals 2e+12 femtogram.
How do I convert points (1/100 carat) to femtograms?
Multiply the value in points (1/100 carat) by 2e+12 to get femtograms.
How do I convert femtograms back to points (1/100 carat)?
Multiply the value in femtograms by 5e-13, or use the Femtogram to Point (1/100 carat) converter.
How many femtograms is 100 points (1/100 carat)?
100 points (1/100 carat) equals 2e+14 femtograms, because 100 × 2e+12 = 2e+14.

Convert Point (1/100 carat) to other weight units

Show all Point (1/100 carat) conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Force / Engineering (5 units)

Sources & references

Conversion factor (1 pt = 2e+12 fg) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.