How Long to Grill Steak by Thickness and Doneness
Grill a 2.5 cm (1 inch) steak for about 3–5 minutes per side; thicker cuts need longer and thinner ones finish faster. Flip once, keep the lid down where possible, and pull it when it reaches your preferred doneness.
The exact time shifts with thickness, bone-in versus boneless, grill heat, whether you start from chilled or room temperature, and carryover cooking during rest. Fat content and marbling also affect how quickly a steak browns and firms.
For food safety, whole beef steaks reach the USDA safe minimum at 63°C (145°F) followed by a 3-minute rest. Rare and medium-rare are culinary preferences below that target, so judge them by feel and appearance rather than quoting lower temperatures.
Timing
| Thickness | Doneness | Time per side | Rest time |
|---|---|---|---|
| 1.5 cm (⅝ in) | Rare | ||
| 1.5 cm (⅝ in) | Medium-rare to Medium | ||
| 2.5 cm (1 in) | Rare | ||
| 2.5 cm (1 in) | Medium-rare | ||
| 2.5 cm (1 in) | Medium | ||
| 3.8 cm (1½ in) | Medium-rare | ||
| 3.8 cm (1½ in) | Medium |
Use the table as a starting point, then judge by feel and thermometer readings. Thickness drives total minutes; flip once for even colouring. For food safety, verify beef steaks reach at least 145°F (63°C) and rest three minutes. Rare and medium-rare are culinary preferences below that threshold—use firmness or probe guidance rather than assuming safe temperatures. Rest on a warm plate loosely covered so juices redistribute before slicing.
What changes the time
Thickness and cut
The steak’s thickness is the main driver of grill time. A 2 cm (about 3/4 inch) steat needs roughly half the time of a 4 cm (1.5 inch) piece for the same doneness, because heat penetrates from both sides. Bone-in cuts also run slower near the bone due to its insulating effect. Marbling influences how quickly colour develops; fattier pieces may render and firm up differently than very lean ones. For consistent results, measure at the thickest point, not the thinnest edge.
Starting temperature
How cold the meat is when it hits the grill shifts timing significantly. Chilled steaks straight from the fridge need extra minutes for the centre to catch up, often leading to overcooked exteriors if rushed. Room-temperature meat cooks more evenly and predictably. Frozen or partially frozen steaks require much longer and are harder to judge by feel alone; consider finishing gently after searing. Pat dry before grilling to promote browning rather than steaming, which can distort your sense of progress.
Equipment and altitude
Grill type and setup change surface contact and airflow. Very hot charcoal provides fierce sear but cooler edges; gas offers steady zones you can dial precisely. Dirty or thin grates reduce contact and slow crust formation. Lid-on acts like an oven, cooking faster through trapped heat; lid-off relies on direct radiation and takes longer. At higher altitude, lower boiling points and drier air slightly extend times and soften crusts—use a thermometer or reliable touch tests rather than fixed minute counts.
How to tell it is done
Use touch, sight and a thermometer where appropriate. Press the centre: very soft feels rare, gently yielding is medium-rare, springy is medium, firm is well-done. Slice with a small knife to check colour at the centre—cool red for rare, warm red for medium-rare, pink for medium, little or no pink for well-done. For safety on whole cuts, you may use an instant-read probe; 145°F (63°C) followed by three minutes’ rest meets USDA guidance. Below that temperature reflects preference only. Resting firms fibres and evens juices, so judge doneness just before removing from heat.