Commodity ratio · live
Cotton to Cobalt Ratio
The cotton to cobalt ratio is 0.04723 — Cotton at $1.87 per kilogram divided by Cobalt at $39.68 per kilogram.
Cotton is quoted per pound and cobalt per metric ton, so both are restated per kilogram first. Dividing the two quotes as published would be out by exactly that much.
Prices as of Sep 23, 2026, 12:47 AM UTC. Change either side of the calculator to price any other pair from 170+ commodities.
Cotton to Cobalt ratio
1.000 kg of cotton = 0.04723 kg of cobalt
Inverse (COB/CT): 21.17 — one kilogram of cobalt buys that much cotton.
Near the top of its 1 year range — historically stretched. (100th percentile of the last 1 year)
Cotton
$1.87
per kilogram
Cobalt
$39.68
per kilogram
Unit basis: USD per kilogram ÷ USD per kilogram. Both legs are priced in US dollars per kilogram, so the dollars and the kilograms cancel and the result is a plain unitless number. Prices as of Wed, 23 Sep 2026 00:47:47 GMT.
Prices on this page are delayed by up to 15 minutes. For real-time rates, use the CommodityPriceAPI.
Cotton is quoted per pound and cobalt per metric ton, so both are restated per kilogram first. Dividing the two quotes as published would be out by exactly that much.
1Y average
0.03088
median 0.03016
1Y low
0.02428
Feb 6, 2026
1Y high
0.04726
Sep 17, 2026
Normal band
0.02584–0.03591
mean ± 1 std dev
Deviation from mean
+3.25σ
251 observations
Cotton to Cobalt ratio charts
Pick a range once — it applies to the CT/COB ratio line, the OHLC candles and the Cotton / Cobalt price chart below.
CT/COB ratio line
How many kg of Cobalt one kg of Cotton buys, over 1Y.
CT/COB ratio candles
Open, high, low and close of the CT/COB ratio for each period in the last 1Y.
Cotton and Cobalt prices
Both legs of the ratio on their own axes, so you can see which one moved over 1Y.
How to calculate the cotton to cobalt ratio
Cotton to Cobalt ratio = Cotton price in USD per kilogram ÷ Cobalt price in USD per kilogram
Both legs are priced in US dollars per kilogram, so the dollars and the kilograms cancel and the result is a plain unitless number.
Cotton is quoted per pound and cobalt per metric ton, so both are restated per kilogram first. Dividing the two quotes as published would be out by exactly that much.
Worked example, live prices: $1.87 per kilogram ÷ $39.68 per kilogram = 0.04723. The inverse is 21.17.
The flagship commodity ratios
Each of these has its own dedicated page with live pricing, a full year of history and range statistics.
Live prices behind the ratio
| # | Symbol | Name | Rate (USD) |
|---|---|---|---|
| 1 | XAU | Gold | 4340.06 |
| 2 | XAG | Silver | 66.55 |
| 3 | WTIOIL-FUT | Crude Oil WTI Futures | 89.52 |
| 4 | BRENTOIL-FUT | Crude Oil Brent Futures | 98.66 |
| 5 | NG-FUT | Natural Gas Futures | 3.01 |
| 6 | PL | 1817.90 | |
| 7 | PA | 1303.20 |
Frequently asked questions
What is the cotton to cobalt ratio today?
The cotton to cobalt ratio is 0.04723 — Cotton at $1.87 per kilogram divided by Cobalt at $39.68 per kilogram, from live mid-market prices. Both figures are US dollars per kilogram.
How do you calculate the cotton to cobalt ratio?
Divide the cotton price per kilogram by the cobalt price per kilogram. Both legs are priced in US dollars per kilogram, so the dollars and the kilograms cancel and the result is a plain unitless number.
What is the inverse of the cotton to cobalt ratio?
The inverse, cobalt to cotton, is 21.17 — how many kilograms of cotton one kilogram of cobalt buys.