Mass and Weight · Unit Converter

Convert Ton (assay) (US) to Gigagram

Convert tons (assay) (us) to gigagrams instantly. 1 ton (assay) (us) = 2.916667e-8 gigagram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Gigagram to Ton (assay) (US) 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

Force / Engineering

Ton (assay) (US)

What is a ton (assay) (us)?

The assay ton (US) equals about 29.167 grams, a mining-assay convenience unit.

Origin of the ton (assay) (us)

Devised so an assay sample's metal in milligrams reads as troy ounces per short ton.

Where it is used

Ore assaying and metallurgy.

When and where it was developed

Adopted in assay laboratories to simplify ore-grade calculation.

Metric / SI

Gigagram

What is a gigagram?

A gigagram (Gg) equals 10^6 kilograms, the same as 1,000 metric tons.

Origin of the gigagram

From the SI prefix 'giga-' (from Greek 'gigas', giant).

Where it is used

Bulk commodity, emissions, and freight accounting.

When and where it was developed

The giga- prefix entered the SI in 1960.

Ton (assay) (US) to Gigagram conversion formula

The relationship between tons (assay) (us) and gigagrams:

1 AT = 2.916667e-8 Gg
1 Gg = 3.428571e+7 AT

To convert tons (assay) (us) to gigagrams, multiply the value in tons (assay) (us) by 2.916667e-8. To reverse, multiply gigagrams by 3.428571e+7.

How to use this converter

Type a value into the calculator. The result in gigagrams updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Gigagram to Ton (assay) (US) converter for the reverse direction.

Step-by-step: convert tons (assay) (us) to gigagrams

  1. Write down the value in tons (assay) (us) (AT).
  2. Multiply that value by the factor 2.916667e-8.
  3. The product is the equivalent value in gigagrams (Gg).
  4. To reverse, multiply the gigagram value by 3.428571e+7.

Worked examples

Example 1 — Convert 1 AT to Gg:
1 × 2.916667e-8 = 2.916667e-8 Gg

Example 2 — Convert 100 AT to Gg:
100 × 2.916667e-8 = 2.916667e-6 Gg

Real-world example — Postcard and small-object dimensions

A postcard is about 5 tons (assay) (us) wide. Converting to gigagrams is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 AT × 2.916667e-8 = 1.458334e-7 Gg

Real-world example — Ruler-scale measurements

A 30-ton (assay) (us) school ruler converts cleanly to gigagrams — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 AT × 2.916667e-8 = 8.750001e-7 Gg

Real-world example — Hardware-scale dimensions

A 10-ton (assay) (us) fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between tons (assay) (us) and gigagrams daily when mixing metric and imperial tools.

10 AT × 2.916667e-8 = 2.916667e-7 Gg

Ton (assay) (US) to Gigagram conversion table

Standard reference values for converting tons (assay) (us) to gigagrams:

Ton (assay) (US) [AT]Gigagram [Gg]
0.012.916667e-10
0.12.916667e-9
12.916667e-8
25.833334e-8
38.750001e-8
41.166667e-7
51.458334e-7
102.916667e-7
205.833334e-7
308.750001e-7
401.166667e-6
501.458334e-6
1002.916667e-6
5001.458334e-5
10002.916667e-5

Frequently asked questions

How many gigagrams is 1 ton (assay) (us)?
1 ton (assay) (us) equals 2.916667e-8 gigagram.
How do I convert tons (assay) (us) to gigagrams?
Multiply the value in tons (assay) (us) by 2.916667e-8 to get gigagrams.
How do I convert gigagrams back to tons (assay) (us)?
Multiply the value in gigagrams by 3.428571e+7, or use the Gigagram to Ton (assay) (US) converter.
How many gigagrams is 100 tons (assay) (us)?
100 tons (assay) (us) equals 2.916667e-6 gigagrams, because 100 × 2.916667e-8 = 2.916667e-6.

Convert Ton (assay) (US) to other weight units

Show all Ton (assay) (US) conversions
Metric / SI (18 units)
Ton (assay) (US) to Attogram (ag) Ton (assay) (US) to Femtogram (fg) Ton (assay) (US) to Picogram (pg) Ton (assay) (US) to Nanogram (ng) Ton (assay) (US) to Microgram (µg) Ton (assay) (US) to Milligram (mg) Ton (assay) (US) to Centigram (cg) Ton (assay) (US) to Decigram (dg) Ton (assay) (US) to Gram (g) Ton (assay) (US) to Dekagram (dag) Ton (assay) (US) to Hectogram (hg) Ton (assay) (US) to Kilogram (kg) Ton (assay) (US) to Quintal (metric) (q) Ton (assay) (US) to Metric Ton (t) Ton (assay) (US) to Gigagram (Gg) Ton (assay) (US) to Teragram (Tg) Ton (assay) (US) to Petagram (Pg) Ton (assay) (US) to Exagram (Eg)
Avoirdupois (15 units)
Ton (assay) (US) to Grain (gr) Ton (assay) (US) to Dram (avoirdupois) (dr) Ton (assay) (US) to Ounce (oz) Ton (assay) (US) to Pound (lb) Ton (assay) (US) to Clove (clove) Ton (assay) (US) to Stone (US) (st) Ton (assay) (US) to Stone (UK) (st) Ton (assay) (US) to Quarter (US) (qr) Ton (assay) (US) to Quarter (UK) (qr) Ton (assay) (US) to Hundredweight (US) (cwt) Ton (assay) (US) to Hundredweight (UK) (cwt) Ton (assay) (US) to Wey (wey) Ton (assay) (US) to Kilopound (kip) (kip) Ton (assay) (US) to Ton (short, US) (sh tn) Ton (assay) (US) to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Ton (assay) (US) to Point (1/100 carat) (pt) Ton (assay) (US) to Carat (metric) (ct) Ton (assay) (US) to Scruple (apothecary) (s ap) Ton (assay) (US) to Pennyweight (dwt) Ton (assay) (US) to Momme (mom) Ton (assay) (US) to Mace (mace) Ton (assay) (US) to Dram (apothecary/troy) (dr ap) Ton (assay) (US) to Troy Ounce (oz t) Ton (assay) (US) to Tael (tael) Ton (assay) (US) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Ton (assay) (US) to Ratti (ratti) Ton (assay) (US) to Masha (masha) Ton (assay) (US) to Tola (tola) Ton (assay) (US) to Chittack (Chatank) (chittack) Ton (assay) (US) to Seer (Ser) (seer) Ton (assay) (US) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Ton (assay) (US) to Electron Mass (rest) (me) Ton (assay) (US) to MeV/c2 (MeV/c²) Ton (assay) (US) to Muon Mass (mµ) Ton (assay) (US) to Atomic Mass Unit (u) Ton (assay) (US) to Proton Mass (mp) Ton (assay) (US) to Neutron Mass (mn) Ton (assay) (US) to Deuteron Mass (md) Ton (assay) (US) to Carbon-12 Atom Mass (C-12) Ton (assay) (US) to Planck Mass (mP)
Astronomical (4 units)
Ton (assay) (US) to Lunar Mass (Moon) (M☾) Ton (assay) (US) to Earth's Mass (M⊕) Ton (assay) (US) to Jupiter Mass (MJ) Ton (assay) (US) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Ton (assay) (US) to Lepton (Biblical Roman) (lepton) Ton (assay) (US) to Quadrans (Biblical Roman) (quadrans) Ton (assay) (US) to Assarion (Biblical Roman) (assarion) Ton (assay) (US) to Gerah (Biblical Hebrew) (gerah) Ton (assay) (US) to Drachma (Biblical Greek) (drachma) Ton (assay) (US) to Denarius (Biblical Roman) (denarius) Ton (assay) (US) to Bekan (Biblical Hebrew) (bekah) Ton (assay) (US) to Didrachma (Biblical Greek) (didrachma) Ton (assay) (US) to Shekel (Biblical Hebrew) (shekel) Ton (assay) (US) to Tetradrachma (Biblical Greek) (tetra) Ton (assay) (US) to Mina (Biblical Greek) (mina) Ton (assay) (US) to Mina (Biblical Hebrew) (mina) Ton (assay) (US) to Talent (Biblical Greek) (talent) Ton (assay) (US) to Talent (Biblical Hebrew) (talent)
Force / Engineering (4 units)
Ton (assay) (US) to Poundal (pdl) Ton (assay) (US) to Ton (assay) (UK) (AT) Ton (assay) (US) to Kilogram-force square second/meter (hyl) Ton (assay) (US) to Slug (slug)

Sources & references

Conversion factor (1 AT = 2.916667e-8 Gg) verified against the following authoritative sources:

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