# Pork cooking time calculator

Enter the weight of your pork joint for the roasting time, with crackling. Slow-roast times for shoulder and belly are below.

Source: https://feastflow.co.uk/pork-cooking-time (FeastFlow free cooking-time guides). Last checked 9 November 2026. The page has a calculator that works out the time for any weight and serving time.

## Pork loin and leg cooking times

At 180°C (160°C fan), 350°F, roast pork for **25 minutes per 450 g (1 lb) plus 25 minutes**, including a first 25 minutes at 220°C (200°C fan) for the crackling.

Pork loin or leg joint:

| Weight | Cooking time |
| --- | --- |
| 1 kg (2.2 lb) | 1 h 20 min |
| 1.5 kg (3.3 lb) | 1 h 50 min |
| 2 kg (4.4 lb) | 2 h 15 min |
| 2.5 kg (5.5 lb) | 2 h 45 min |
| 3 kg (6.6 lb) | 3 h 10 min |

## Slow-roast pork shoulder and belly

At 160°C (140°C fan), 325°F, then 30 minutes at 220°C for crackling:

| Weight | Shoulder | Belly |
| --- | --- | --- |
| 1 kg (2.2 lb) | 4 h 30 min | 2 h 30 min |
| 1.5 kg (3.3 lb) | 4 h 30 min | 2 h 30 min |
| 2 kg (4.4 lb) | 4 h 30 min | 2 h 45 min |
| 2.5 kg (5.5 lb) | 4 h 45 min | 3 h |
| 3 kg (6.6 lb) | 5 h | 3 h 15 min |

## How to get crackling

For crackling, dry the skin, score it, rub in salt and start at 220°C (200°C fan), 425°F, for the first 25 minutes. For slow-roast cuts, finish with that blast for the last 30 minutes instead. Don’t baste the skin, and if it isn’t crisp when the meat is done, cut it off and put it back under a hot grill for a few minutes.

Pork is cooked at **70°C (160°F)** in the middle, when the juices run clear.

## Questions

### How long to cook a 2 kg pork joint?

About 2 h 15 min at 180°C (160°C fan), after starting it hot for the crackling.

### Why didn’t my crackling crackle?

The skin was wet. Dry it well, ideally uncovered in the fridge overnight, score it, rub in plenty of salt and start the joint in a very hot oven.

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Times are a guide: ovens and joints vary. Always check meat with a thermometer before serving. FeastFlow’s times come from British Turkey, AHDB and USDA guidance.

FeastFlow also plans a whole meal backwards from serving time, with every dish timed and oven temperatures that don’t clash: https://feastflow.co.uk/