Slow Cooker Conversion Calculator

Turn an oven or stovetop cooking time into slow-cooker LOW and HIGH ranges, or convert between LOW and HIGH. A guide for adapting recipes to a slow cooker. A free slow cooker conversion calculator that runs in your browser, with no sign-up.

Adapt an oven or stovetop recipe to your slow cooker, or switch a dish between the LOW and HIGH settings. Enter the conventional time and read the LOW and HIGH windows, given as ranges since dishes vary. One hour in the oven is roughly 4 to 6 hours on LOW or 2 to 3 hours on HIGH.

  • Ingredient-aware accuracy
  • 100% free
  • No sign-up, no app
  • Instant as you type
  • Works offline after first load
On LOW
4–6 hours
On HIGH
2–3 hours

A guide, not a guarantee. Dishes with a lot of liquid or dense cuts can need the longer end of the range.

Quick reference
15 min · LOW 1–1.5 hours
30 min · LOW 2–3 hours
45 min · LOW 3–4.5 hours
1 h · LOW 4–6 hours
1 h 30 min · LOW 6–9 hours
2 h · LOW 8–12 hours

How to use it

  1. 1

    Choose a direction

    Convert oven time to slow-cooker time, or switch between LOW and HIGH.

  2. 2

    Enter the time

    Type the conventional cooking time, or the LOW time you want to convert.

  3. 3

    Read the range

    See the LOW and HIGH windows, given as a range since dishes vary.

When it comes in handy

Adapting a recipe

Take an oven recipe and find how long it needs in the slow cooker.

Low or high setting

Decide between LOW and HIGH and convert the time to match.

Planning the day

Work out a LOW setting that will be ready by dinner from a long day out.

Instant, exact & 100% in your browser

The conversion runs right here in your browser using exact, standard factors. Nothing you type is sent to a server, there is no sign-up and no limit, and once the page has loaded it keeps working even with no connection.

Frequently asked questions

How do I convert oven time to slow cooker time?
A common rule maps one hour of oven or stovetop cooking to about 4 to 6 hours on LOW or 2 to 3 hours on HIGH. The calculator applies this to your time and shows both ranges, since the right end depends on the dish.
What is the difference between LOW and HIGH?
Both settings reach a similar simmering temperature, but LOW takes roughly twice as long to get there as HIGH. So a dish set for 8 hours on LOW is about 4 hours on HIGH. LOW suits tougher cuts that benefit from a long, gentle cook.
Can I leave a slow cooker on all day?
Slow cookers are designed for long unattended cooking on LOW, which is part of their appeal. Follow the manufacturer’s guidance for your model, use the LOW range for longer dishes, and make sure there is enough liquid so nothing dries out.

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