Cooking time calculator: how long to cook in the oven

Written byOleh Soloninupdated 27 September 2026

How Long to Cook

An oven-first cooking calculator with product-specific modeling for thickness, weight, batch size, texture, safe minimums, and practical notes.

Search food

Selected food: chicken breast (boneless, skinless)

Food

Recommended temperature range: 177-204°C.

Temperature units

Oven temperature

Weight (g)

This value helps refine the estimate

Thickness (cm)

Doneness / texture

Covered state

Oven mode

Time estimate and key checkpoints

Safe minimum

22-24 minutes

Internal temperature target: around 74°C

Juicier result

26-28 minutes

Internal temperature target: around 77°C

Firmer texture

30-33 minutes

Internal temperature target: around 82°C

Temperature

204°C

Safe minimum

74°C

Target / texture

Juicy result

Internal temperature target: around 74°C

Rest time

5 min

Food: chicken breast (boneless, skinless)

Biggest timing factor: Thickness, the product starting temperature, and the real oven temperature usually move the result the most.

Practical note: Use a thermometer and check the thickest part, especially for meat, fish, and frozen prepared foods.

Built on food-safety data, not copied from other recipes

Oven times for 80 foods, starting from official safe internal temperatures and scaled to the size of your actual piece.

Most cooking-time pages copy numbers from each other with no stated source. This one starts from published safe internal temperatures — poultry 74 °C, whole cuts 63 °C, fish 63 °C — and works outward from there.

Time then scales with geometry. Heat travels inward, so thickness matters more than total weight for a steak or fillet, while a whole bird is governed by mass. A piece twice as thick takes considerably more than twice as long.

How to use

Find the food in the list — there are dozens, and the search matches on name.
Enter the weight and the oven temperature; you can switch to Fahrenheit.
Pick the doneness band: each has its own time range and its own internal temperature.
Finish by thermometer, not by clock: the time tells you when to start checking.

How weight and temperature move the time

Each row is a run of this calculator for a boneless chicken breast on the “juicier result” band. The time comes as a range because it depends on thickness more than on grams.

Oven temperature moves the time as much as weight does: the same 200 grams at 177 degrees instead of 204 needs two to four minutes more. The safe minimum of 74 degrees in the centre moves for neither.

Runs of this calculator for a boneless chicken breast on the “juicier result” band.
Weight	Oven temperature	Time	Centre	Safe minimum
150 g	204 °C	24–26 min	77 °C	74 °C
200 g	204 °C	26–28 min	77 °C	74 °C
300 g	204 °C	28–30 min	77 °C	74 °C
200 g	177 °C	28–30 min	77 °C	74 °C

What this calculator shows

A time range adjusted to your weight or thickness
The safe internal temperature to check for
How doneness preference and oven temperature shift the estimate

What to keep in mind

Safe temperatures follow FoodSafety.gov and USDA FSIS guidance.
Times assume a preheated oven; fan settings typically cook faster, so start checking early.

Safety and doneness are separate

Time is guidance only. For safe doneness, follow the minimum internal temperature and verify with a thermometer.

How the model works

The dataset separates reference time ranges, typical oven temperatures, geometry drivers, safe minimums, supported doneness targets, and variation factors for each food.
The calculation weighs oven temperature, food geometry, batch size, and selected cooking settings without turning the form into a long instruction manual.
The estimate still depends on your real oven, pan, starting temperature, and the brand or formulation of the product.

FAQs

Why does thickness matter more than weight?

Heat conducts from the surface inward, so the distance to the centre sets the pace. Two 200 g pieces cook differently if one is flat and one is chunky.

Is time or temperature the real safety measure?

Internal temperature, together with any rest it calls for. Poultry, minced chicken and turkey included, is safe at 74 °C in the centre, and minced beef, pork, veal and lamb at 71 °C; whole cuts of beef, pork, veal and lamb need 63 °C followed by at least three minutes' rest. Cooking time is a planning estimate; a thermometer reading is the evidence.

Should I trust my oven dial?

Not entirely. The temperature inside can differ from the dial and from shelf to shelf, and by how much is particular to each oven. A cheap oven thermometer tells you in a single preheat.

How much longer does frozen meat take?

Roughly 1.5 times the chilled time, and it must reach the same internal temperature. Never cook from frozen if the recipe depends on precise timing.

Why a range rather than a single number?

Because the time depends on thickness more than on weight, and two pieces of the same weight can be shaped very differently. The range tells you when to start using a thermometer.

What is the safe minimum?

The internal temperature at which the food counts as safe. For poultry that is 74 degrees, and it does not move with weight or oven temperature. Doneness bands above it are a question of texture, not of safety.

Worked example

Chicken breast

Input: 200 g, 2.5 cm thick, 200 °C

Output: Roughly 20–25 minutes to 74 °C internal

Note: A thermometer beats a timer every time, not least because an oven can run hotter or cooler than its dial says.

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