+100°
🧽Dish soap
Ajax Ultra Liquid Dish Soap with Fabuloso Watermelon Scent
$0.076Cost / fl oz
Price checked Jul 21 · confirm on Amazon🔥 Popularpack price$3.97
subscribe & save$0.072−5%
💚 81% below median $/fl ozAjax · Amazon
See on Amazon Best dish soap of 2026
Three picks computed live from real cost per fl oz — never sponsored, never hand-waved. Prices re-checked continuously; verdicts stamped July 2026.
Category median: $0.40 / fl oz across 51 tracked deals · our budget pick is 83% below it.
Our picks
🏆 Best value dish soap
Value index 5.0/5 · price only
As of July 2026, Ajax Ultra Liquid Dish Soap with Fabuloso Watermelon Scent is our best-value dish soap at $0.076/fl oz — low cost per fl oz and popular enough to trust, not just the rock-bottom price — prices re-checked continuously.
💰 Best budget dish soap
📦 Best bulk-buy dish soap
+100°
🧽Dish soap
Ajax Ultra Liquid Dish Soap Vinegar and Lime Scent
$0.066Cost / fl oz
Price checked Jul 21 · confirm on Amazon🔥 Popularpack price$5.97
subscribe & save$0.063−5%
💚 83% below median $/fl ozAjax · Amazon
See on Amazon Value index 5.0/5 · price only
As of July 2026, Ajax Ultra Liquid Dish Soap Vinegar and Lime Scent is the cheapest dish soap we track at $0.066/fl oz — prices re-checked continuously.
⭐ Most popular dish soap
+155°
🧽Dish soap
AJAX Ultra Triple Action Liquid Dish Soap
$1.09Cost / fl oz
Price checked Jul 21 · confirm on Amazon🔥 Popularpack price$30.56$33.99↓10%
Ajax · Amazon
See on Amazon Value index 3.3/5 · price only
As of July 2026, AJAX Ultra Triple Action Liquid Dish Soap is the most popular dish soap we track at $1.09/fl oz — prices re-checked continuously.
🏠 Best small-pack dish soap
+62°
🧽Dish soap
Platinum Dish Soap, Fresh Rain Scent Liquid Dishwashing…
$0.23Cost / fl oz
Price checked Jul 21 · confirm on Amazonpack price$2.94$3.12↓6%
subscribe & save$0.21−5%
💚 43% below median $/fl ozDawn · Amazon
See on Amazon Value index 4.5/5 · price only
As of July 2026, Platinum Dish Soap, Fresh Rain Scent Liquid Dishwashing… is the smallest pack we track that still beats the median at $0.23/fl oz — a fair price per fl oz without committing to a bulk box.
🏷️ Best store-brand dish soap
+100°
🧽Dish soap
Amazon Basics Dish Soap
$0.12Cost / fl oz
Price checked Jul 21 · confirm on Amazon🔥 Popularpack price$6.25
subscribe & save$0.11−10%
💚 69% below median $/fl ozAmazon Basics · Amazon
See on Amazon Value index 4.8/5 · price only
As of July 2026, Amazon Basics Dish Soap is the cheapest store-brand dish soap we track at $0.12/fl oz — same job, no brand premium.
✨ Best premium dish soap
+85°
🧽Dish soap
SEVENTH GENERATION DISHWASH LIQ FREE & CLEAR, 50 OZ, PK- 3
$0.40Cost / fl oz
Price checked Jul 21 · confirm on Amazonpack price$20.01
Seventh Generation · Amazon
See on Amazon Value index 4.0/5 · price only
As of July 2026, SEVENTH GENERATION DISHWASH LIQ FREE & CLEAR, 50 OZ, PK- 3 is the priciest dish soap we track that still comes in at or below the category median at $0.40/fl oz — a premium product that isn't a premium price per fl oz.
Top 15 dish soap by cost per fl oz
Every live deal ranked by its real unit price — pack size shown so you can see what the math divides by.
| # | Deal | $ / fl oz | Pack size |
|---|---|---|---|
| 1 | Ajax Ultra Liquid Dish Soap Vinegar and Lime ScentAjax | $0.066 | 2.66 L |
| 2 | Ajax Ultra Liquid Dish Soap Orange ScentAjax | $0.066 | 2.66 L |
| 3 | Ajax Ultra Liquid Dish Soap with Fabuloso Watermelon…Ajax | $0.076 | 1.54 L |
| 4 | Amazon Basics Dish SoapAmazon Basics | $0.12 | 1.48 L |
| 5 | Ajax Dish Soap, Liquid, Vinegar and Lime | 90 oz Bottle…Ajax | $0.13 | 2.66 L |
| 6 | Dawn Dishwashing Liquid, Original Scent, 38 fl ozDawn | $0.16 | 1.12 L |
| 7 | Dawn EZ-Squeeze Ultra Dish SoapDawn | $0.16 | 651 ml |
| 8 | Dawn Ultra Original Dish Soap Refill JugDawn | $0.17 | 1.52 L |
| 9 | Mrs. Meyer's Clean DayMrs. Meyer's | $0.19 | 1.42 L |
| 10 | Platinum Dish Soap Fresh Rain Scent Liquid Dishwashing…Dawn | $0.20 | 887 ml |
| 11 | MRS. MEYER'S CLEAN DAY Liquid Dish Soap RefillMrs. Meyer's | $0.22 | 1.42 L |
| 12 | Platinum Dish Soap, Fresh Rain Scent Liquid Dishwashing…Dawn | $0.23 | 384 ml |
| 13 | Dawn Platinum Plus PowerSuds Liquid Dish SoapDawn | $0.23 | 1.52 L |
| 14 | MRS. MEYER'S CLEAN DAY Liquid Dish Soap RefillMrs. Meyer's | $0.25 | 1.42 L |
| 15 | MRS. MEYER'S CLEAN DAY Liquid Dish Soap RefillMrs. Meyer's | $0.25 | 1.42 L |
FAQ
- What is the best dish soap in 2026?
- As of July 2026, Ajax Ultra Liquid Dish Soap with Fabuloso Watermelon Scent is our best-value dish soap at $0.076/fl oz — low cost per fl oz and popular enough to trust, not just the rock-bottom price — prices re-checked continuously. "Best" here is computed, not sponsored: the lowest real cost per fl oz among deals at or above the category's median popularity.
- What is the cheapest dish soap right now?
- As of July 2026, the cheapest dish soap we track is Ajax Ultra Liquid Dish Soap Vinegar and Lime Scent at $0.066/fl oz — 83% below the category median of $0.40/fl oz across 51 tracked deals.
- How do we choose the best dish soap?
- Pure arithmetic, no sponsorships: every live deal is ranked by its real cost per fl oz (price divided by fl ozs in the pack). The Budget pick is the absolute cheapest per fl oz; the Best value pick must also meet or beat the category's median popularity; the Popular pick is simply the most-bought deal we track. Prices are re-checked continuously.
- How often are these 2026 picks updated?
- The contenders for these picks — the cheapest dish soap per fl oz in the category — are re-checked every day, and the picks are recomputed from the live catalog, so a price change can promote a new winner the same day. The wider tail of the catalog is re-checked on a rolling cycle. Every deal card shows the date we last checked it; the verdicts above are stamped July 2026.