Mass and Weight · Unit Converter

Convert Seer (Ser) to Ton (assay) (US)

Convert seers (ser) to tons (assay) (us) instantly. 1 seer (ser) = 31.9921437723 ton (assay) (us) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ton (assay) (US) to Seer (Ser) 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

Indian / South Asian

Seer (Ser)

What is a seer (ser)?

The seer (ser) equals about 933 grams, or eighty tola (close to one kilogram).

Origin of the seer (ser)

From Hindi/Urdu 'ser', a major pre-metric trade weight.

Where it is used

Historical grain, milk, and produce trade across South Asia.

When and where it was developed

Standardized in British India; aligned near 1 kg after metrication.

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.

Seer (Ser) to Ton (assay) (US) conversion formula

Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.

The relationship between seers (ser) and tons (assay) (us):

1 seer = 31.9921437723 AT
1 AT = 0.031257674 seer

To convert seers (ser) to tons (assay) (us), multiply the value in seers (ser) by 31.9921437723. To reverse, multiply tons (assay) (us) by 0.031257674.

How to use this converter

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

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

  1. Write down the value in seers (ser) (seer).
  2. Multiply that value by the factor 31.9921437723.
  3. The product is the equivalent value in tons (assay) (us) (AT).
  4. To reverse, multiply the ton (assay) (us) value by 0.031257674.

Worked examples

Example 1 — Convert 1 seer to AT:
1 × 31.9921437723 = 31.9921437723 AT

Example 2 — Convert 100 seer to AT:
100 × 31.9921437723 = 3199.2143772326 AT

Real-world example — Pet and accessory dimensions

A 3-seer (ser) dog leash equals a tidy round value in tons (assay) (us). Pet-supply shopping frequently mixes the two units across product specifications.

3 seer × 31.9921437723 = 95.976431317 AT

Real-world example — Fabric and tailoring

One seer (ser) of fabric converts to a value in tons (assay) (us) commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.

1 seer × 31.9921437723 = 31.9921437723 AT

Real-world example — Body height conversion (reverse direction)

You measure 1.75 seers (ser) tall and need to fill in a gym membership form or medical record that asks for height in tons (assay) (us). This is the most-used everyday length conversion in metric-using countries.

1.75 seer × 31.9921437723 = 55.9862516016 AT

Seer (Ser) to Ton (assay) (US) conversion table

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

Seer (Ser) [seer]Ton (assay) (US) [AT]
0.010.3199214377
0.13.1992143772
131.9921437723
263.9842875447
395.976431317
4127.9685750893
5159.9607188616
10319.9214377233
20639.8428754465
30959.7643131698
401279.6857508931
501599.6071886163
1003199.2143772326
50015996.0718861632
100031992.1437723264

Frequently asked questions

How many tons (assay) (us) is 1 seer (ser)?
1 seer (ser) equals 31.9921437723 ton (assay) (us).
How do I convert seers (ser) to tons (assay) (us)?
Multiply the value in seers (ser) by 31.9921437723 to get tons (assay) (us).
How do I convert tons (assay) (us) back to seers (ser)?
Multiply the value in tons (assay) (us) by 0.031257674, or use the Ton (assay) (US) to Seer (Ser) converter.
How many tons (assay) (us) is 100 seers (ser)?
100 seers (ser) equals 3199.2143772326 tons (assay) (us), because 100 × 31.9921437723 = 3199.2143772326.

Convert Seer (Ser) to other weight units

Show all Seer (Ser) conversions
Metric / SI (18 units)
Seer (Ser) to Attogram (ag) Seer (Ser) to Femtogram (fg) Seer (Ser) to Picogram (pg) Seer (Ser) to Nanogram (ng) Seer (Ser) to Microgram (µg) Seer (Ser) to Milligram (mg) Seer (Ser) to Centigram (cg) Seer (Ser) to Decigram (dg) Seer (Ser) to Gram (g) Seer (Ser) to Dekagram (dag) Seer (Ser) to Hectogram (hg) Seer (Ser) to Kilogram (kg) Seer (Ser) to Quintal (metric) (q) Seer (Ser) to Metric Ton (t) Seer (Ser) to Gigagram (Gg) Seer (Ser) to Teragram (Tg) Seer (Ser) to Petagram (Pg) Seer (Ser) to Exagram (Eg)
Avoirdupois (15 units)
Seer (Ser) to Grain (gr) Seer (Ser) to Dram (avoirdupois) (dr) Seer (Ser) to Ounce (oz) Seer (Ser) to Pound (lb) Seer (Ser) to Clove (clove) Seer (Ser) to Stone (US) (st) Seer (Ser) to Stone (UK) (st) Seer (Ser) to Quarter (US) (qr) Seer (Ser) to Quarter (UK) (qr) Seer (Ser) to Hundredweight (US) (cwt) Seer (Ser) to Hundredweight (UK) (cwt) Seer (Ser) to Wey (wey) Seer (Ser) to Kilopound (kip) (kip) Seer (Ser) to Ton (short, US) (sh tn) Seer (Ser) to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Seer (Ser) to Point (1/100 carat) (pt) Seer (Ser) to Carat (metric) (ct) Seer (Ser) to Scruple (apothecary) (s ap) Seer (Ser) to Pennyweight (dwt) Seer (Ser) to Momme (mom) Seer (Ser) to Mace (mace) Seer (Ser) to Dram (apothecary/troy) (dr ap) Seer (Ser) to Troy Ounce (oz t) Seer (Ser) to Tael (tael) Seer (Ser) to Pound (troy/apothecary) (lb t)
Indian / South Asian (5 units)
Seer (Ser) to Ratti (ratti) Seer (Ser) to Masha (masha) Seer (Ser) to Tola (tola) Seer (Ser) to Chittack (Chatank) (chittack) Seer (Ser) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Seer (Ser) to Electron Mass (rest) (me) Seer (Ser) to MeV/c2 (MeV/c²) Seer (Ser) to Muon Mass (mµ) Seer (Ser) to Atomic Mass Unit (u) Seer (Ser) to Proton Mass (mp) Seer (Ser) to Neutron Mass (mn) Seer (Ser) to Deuteron Mass (md) Seer (Ser) to Carbon-12 Atom Mass (C-12) Seer (Ser) to Planck Mass (mP)
Astronomical (4 units)
Seer (Ser) to Lunar Mass (Moon) (M☾) Seer (Ser) to Earth's Mass (M⊕) Seer (Ser) to Jupiter Mass (MJ) Seer (Ser) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Seer (Ser) to Lepton (Biblical Roman) (lepton) Seer (Ser) to Quadrans (Biblical Roman) (quadrans) Seer (Ser) to Assarion (Biblical Roman) (assarion) Seer (Ser) to Gerah (Biblical Hebrew) (gerah) Seer (Ser) to Drachma (Biblical Greek) (drachma) Seer (Ser) to Denarius (Biblical Roman) (denarius) Seer (Ser) to Bekan (Biblical Hebrew) (bekah) Seer (Ser) to Didrachma (Biblical Greek) (didrachma) Seer (Ser) to Shekel (Biblical Hebrew) (shekel) Seer (Ser) to Tetradrachma (Biblical Greek) (tetra) Seer (Ser) to Mina (Biblical Greek) (mina) Seer (Ser) to Mina (Biblical Hebrew) (mina) Seer (Ser) to Talent (Biblical Greek) (talent) Seer (Ser) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Seer (Ser) to Poundal (pdl) Seer (Ser) to Ton (assay) (US) (AT) Seer (Ser) to Ton (assay) (UK) (AT) Seer (Ser) to Kilogram-force square second/meter (hyl) Seer (Ser) to Slug (slug)

Sources & references

Conversion factor (1 seer = 31.9921437723 AT) verified against the following authoritative sources:

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