在线免费卡路里计算器
计算减重、增重或维持体重所需的每日卡路里。
−500 kcal/day
−250 kcal/day
+500 kcal/day
Frequently Asked Questions
How many calories should I eat per day to lose weight?
Eat 500 calories below your TDEE for ~1 lb/week loss. For example, if your TDEE is 2,200 calories, eat 1,700/day. Avoid going below 1,200 calories (women) or 1,500 (men) without medical supervision.
What is the difference between BMR and TDEE?
BMR (Basal Metabolic Rate) is calories burned at complete rest — just to keep you alive. TDEE (Total Daily Energy Expenditure) adds your activity level on top. You should eat at your TDEE to maintain weight.
Which calorie formula does this calculator use?
The Mifflin-St Jeor equation, which is considered the most accurate for most people: BMR = 10×weight(kg) + 6.25×height(cm) − 5×age + 5 (men) or −161 (women). The Harris-Benedict formula is also available.
How accurate are calorie calculators?
TDEE estimates can be off by 10–20% due to individual metabolic variation. Use the result as a starting point, track your actual weight change over 2–3 weeks, then adjust intake by 100–200 calories if needed.
Do I need to count calories to lose weight?
Not necessarily, but tracking helps. Awareness of intake is the strongest predictor of dietary adherence. Many people lose weight without formal counting by focusing on food quality, portion control, and satiety signals.
Is the 卡路里计算器 free to use?
Yes, the 卡路里计算器 on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the 卡路里计算器 work?
计算减重、增重或维持体重所需的每日卡路里。 No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the 卡路里计算器?
No installation needed. The 卡路里计算器 runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the 卡路里计算器?
Completely safe. The 卡路里计算器 processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the 卡路里计算器 work offline?
After the page loads for the first time, the 卡路里计算器 works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.
How accurate are the 卡路里计算器 calculations?
The 卡路里计算器 uses clinically validated formulas such as the Mifflin–St Jeor or Harris–Benedict equations where applicable. Results are population-based estimates and can differ from measured values by 10–20% for individuals with atypical body composition. See our <a href="/methodology/">Methodology page</a> for full formula sources and references. Consult a qualified healthcare professional before making medical or dietary decisions.
Which formula does the 卡路里计算器 use?
The 卡路里计算器 uses an established, peer-reviewed formula endorsed by leading health organisations such as the WHO, CDC, or NIH where applicable. The specific formula is chosen for its validated accuracy across diverse adult populations under normal conditions.
Does the 卡路里计算器 work on all browsers?
Yes. The 卡路里计算器 is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.
How do I save or export my results from the 卡路里计算器?
Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.