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Kill-a-Watt Law

✦ Kill-a-WattUnusual1mo ago

This price has not changed since 2026-09-30 10:07 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.

Sell price
32 keys, 13 ref
Buy price
28 keys, 0.11 ref
In keys
32.2 keys
In USD
$69.89 at the Steam key rate

Community price on backpack.tf: 35.0–38.0 keys, last changed 2024-08-13 (2.2y ago). The live quote above, 32.2 keys, is 8% lower and last moved 1mo ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.

Price history

58 observations

Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.

The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.

Kill-a-Watt Law sell price, 2025-09-25 to 2026-10-23: 58 observations, from 39.4 keys to 17.5 keys. Sampled evenly across the range.
Observed (UTC)SellBuy
25 SEP 2025 · 03:29 UTC39.4 keys28.9 keys
30 SEP 2025 · 21:08 UTC39.3 keys29.7 keys
19 OCT 2025 · 20:38 UTC35.8 keys29.7 keys
25 OCT 2025 · 17:00 UTC34.1 keys28.3 keys
22 NOV 2025 · 12:38 UTC27.5 keys24.1 keys
1 FEB 2026 · 23:44 UTC31.5 keys21.3 keys
1 JUN 2026 · 12:30 UTC31.7 keys27.1 keys
8 JUN 2026 · 00:31 UTC31.3 keys26.9 keys
22 JUN 2026 · 00:11 UTC33.1 keys29.5 keys
5 JUL 2026 · 21:12 UTC20.7 keys18.0 keys
19 JUL 2026 · 22:44 UTC27.6 keys24.0 keys
29 JUL 2026 · 00:45 UTC30.3 keys26.3 keys
10 AUG 2026 · 15:11 UTC32.0 keys27.8 keys
21 AUG 2026 · 00:09 UTC32.4 keys28.1 keys
21 AUG 2026 · 12:08 UTC32.3 keys28.1 keys
22 AUG 2026 · 12:09 UTC32.4 keys28.1 keys
23 AUG 2026 · 00:08 UTC32.4 keys28.2 keys
24 AUG 2026 · 00:09 UTC32.5 keys28.3 keys
24 AUG 2026 · 12:09 UTC32.4 keys28.2 keys
25 AUG 2026 · 16:09 UTC32.5 keys28.2 keys
26 AUG 2026 · 04:09 UTC32.5 keys28.3 keys
27 AUG 2026 · 04:10 UTC32.5 keys28.2 keys
27 AUG 2026 · 18:08 UTC32.5 keys28.2 keys
28 AUG 2026 · 18:09 UTC32.5 keys28.3 keys
29 AUG 2026 · 14:09 UTC32.5 keys28.3 keys
31 AUG 2026 · 16:09 UTC32.2 keys28.0 keys
4 SEP 2026 · 12:08 UTC31.6 keys27.5 keys
8 SEP 2026 · 20:09 UTC31.4 keys27.3 keys
15 SEP 2026 · 00:08 UTC32.0 keys27.8 keys
16 SEP 2026 · 04:07 UTC31.9 keys27.8 keys
21 SEP 2026 · 14:08 UTC32.2 keys28.0 keys
23 SEP 2026 · 14:10 UTC32.1 keys27.9 keys
25 SEP 2026 · 20:09 UTC32.6 keys28.3 keys
26 SEP 2026 · 16:09 UTC32.7 keys28.4 keys
2 OCT 2026 · 19:10 UTC32.0 keys27.9 keys
5 OCT 2026 · 07:09 UTC32.9 keys28.6 keys
8 OCT 2026 · 21:10 UTC32.8 keys28.5 keys
13 OCT 2026 · 09:08 UTC32.8 keys28.5 keys
19 OCT 2026 · 15:08 UTC17.5 keys15.2 keys
23 OCT 2026 · 23:12 UTC17.5 keys17.5 keys

Price history in numbers

58 readings since 25 Sep 2025

Over the last 30 days the Kill-a-Watt Law's sell price ranged from 17.5 keys to 32.9 keys and is down 46.6% after 5 moves. Over a year it ranged from 17.5 keys to 36.3 keys (down 51.9%). Today's 17.5 keys sits at the bottom of its range: the lowest we have recorded is 17.5 keys (23 Oct 2026) and the highest 39.4 keys (25 Sep 2025). The price has moved 57 times since we began recording it — about once every 7 days.

WindowLowHighChangeMovesReadings
30 days17.5 keys32.9 keys−46.6%56
90 days17.5 keys32.9 keys−45.5%3940
a year17.5 keys36.3 keys−51.9%5253

Details

SKU30362;5;u56
Last price change2026-09-30 10:07 UTC
Key rate when recorded63.33 ref

Same effect, other items

the effect across the catalogue
ItemValueUpdated
Kill-a-Watt Antlers1,111 keys12mo ago
Kill-a-Watt Virtual Viewfinder1,100 keys12mo ago
Kill-a-Watt Polar Pullover1,100 keys12mo ago
Kill-a-Watt Exquisite Rack760 keys1mo ago
Kill-a-Watt Head Prize387 keys1mo ago
Kill-a-Watt Blighted Beak303 keys1mo ago
Kill-a-Watt Brainiac Hairpiece283 keys1mo ago
Kill-a-Watt Legendary Lid283 keys1mo ago
Kill-a-Watt Decorated Veteran261 keys1mo ago
Kill-a-Watt Bonk Boy265 keys1mo ago

Other effects on the Law

same item, different effect
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Frostbite Law281 keys2mo ago
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Scorching Flames Law228 keys1mo ago
Starstorm Insomnia Law162 keys1mo ago
Neutron Star Law141 keys1mo ago
Sunbeams Law133 keys1mo ago
Starstorm Slumber Law110 keys1mo ago
Purple Energy Law101 keys1mo ago
Electrostatic Law93.1 keys1mo ago

Priced similarly

across the catalogue