Oven to Slow Cooker Converter

The standard conversion ranges

Slow cooker conversion charts published by manufacturers and cooking references agree on three tiers, which our calculator applies to your oven time:

• Oven 15–30 minutes → Low 4–6 hours / High 1½–2 hours
• Oven 35–45 minutes → Low 6–8 hours / High 3–4 hours
• Oven 50 minutes–3 hours → Low 8–12 hours / High 4–6 hours

One hour of oven braising ≈ 4–6 hours on Low or 2 hours on High; the ratio isn't perfectly linear between settings — Low runs about twice the High time, not double the temperature's effect on browning.

Slow cooker rules the charts don't tell you

• Cut liquid by a third to a half. Nothing evaporates in a sealed crock — braising liquid arrives at full strength.
• Brown first when you can. Ten minutes of searing replaces the Maillard flavor the oven would have built.
• Dairy and pasta go in late. Milk splits and pasta blows out over long cooks — stir them in for the final 30–60 minutes.
• Keep the lid on. Every peek vents 20+ minutes of accumulated heat.

What converts well (and what doesn't)

Stews, chili, pulled pork, curries, braised chicken thighs, bean dishes, and broth-based soups convert beautifully. Things that don't: anything needing browning as the star (roast chicken skin), delicate fish, most baking, and quick-cooking vegetables that turn to mush on the Low tier.