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ロースト時間計算機

重量とオーブン温度から七面鳥、鶏肉、牛肉、豚肉のロースト時間を見積もります。

はじめに

Roasting Time Calculator — Estimate roasting time for turkey, chicken, beef, or pork by weight and oven temperature. Enter Food type, Weight (lb), Oven temp (°F, optional) to get an instant, accurate result.

計算式

Base time = weight (lb) × minutes-per-lb from a standard roasting reference table (e.g. turkey ≈13 min/lb at 325°F, chicken and beef roast ≈20 min/lb at 350°F, pork roast ≈25 min/lb at 350°F). If a different oven temperature is entered, that base time is further scaled by reference temp ÷ new temp, the same inverse-ratio approximation used in the cooking-time calculator.

ステップごとの説明

  1. Enter the Food type.
  2. Enter the Weight (lb).
  3. Enter the Oven temp (°F, optional).
  4. Click Calculate to see your result instantly.

実例

Example: With Food type = turkey, Weight (lb) = 12 lb, the Roasting Time Calculator gives Reference Minutes: 156, Minutes: 156, Hours Minutes: 2h 36m.

よくある質問

Where do the minutes-per-lb figures come from?
They reflect commonly published roasting reference tables (similar to USDA-style guidance) for each food type at its typical oven temperature.
Is this a substitute for a meat thermometer?
No — weight-based roasting times are only an estimate. Always confirm doneness with a food thermometer (e.g. 165°F for poultry) since oven accuracy, bone-in vs. boneless, and starting temperature all affect actual cook time.
Why does changing the oven temperature affect the time?
The calculator applies the same rule-of-thumb inverse scaling used elsewhere on the site — a hotter oven roughly proportionally reduces time — though real roasting behavior is more complex than a pure inverse relationship.
What inputs does the Roasting Time Calculator need?
You'll need to provide: Food type, Weight (lb), Oven temp (°F, optional). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Roasting Time Calculator?
The Roasting Time Calculator applies the formula exactly as calculated — Base time = weight (lb) × minutes-per-lb from a standard roasting reference table (e.g. turkey ≈13 min/lb at 325°F, chicken and beef roast ≈20 min/lb at 350°F, pork roast ≈25 min/lb at 350°F). If a different oven temperature is entered, that base time is further scaled by reference temp ÷ new temp, the same inverse-ratio approximation used in the cooking-time calculator. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Roasting Time Calculator free to use?
Yes, the Roasting Time Calculator is completely free, requires no signup, and runs instantly in your browser.

ロースト時間計算機について

The Roasting Time Calculator uses a real, verifiable formula — Base time = weight (lb) × minutes-per-lb from a standard roasting reference table (e.g. turkey ≈13 min/lb at 325°F, chicken and beef roast ≈20 min/lb at 350°F, pork roast ≈25 min/lb at 350°F). If a different oven temperature is entered, that base time is further scaled by reference temp ÷ new temp, the same inverse-ratio approximation used in the cooking-time calculator. — so results are accurate every time, not an approximation.