TDEE & Calorie Guide Singapore 2026: Maintenance, Cutting & Macros

TDEE Singapore 2026 — Quick Answer

Your TDEE (Total Daily Energy Expenditure) is the calories you burn in a day: BMR × activity factor. Calculate BMR with the Mifflin-St Jeor equation, then multiply by 1.2 (sedentary) to 1.9 (very active). To lose weight, eat 10–20% below TDEE; to maintain, eat at it; to gain, eat 10–20% above. Use the TDEE Calculator to get your number plus cut/bulk targets and a macro split.

Almost every diet question — how much should I eat, why am I not losing weight, how do I bulk without getting fat — comes back to one number: your TDEE. Get it right and calorie targets stop being guesswork. Get it wrong, or skip it entirely, and you end up either under-eating and stalling or over-eating and wondering why the weight crept on. This guide explains what TDEE is, how it's calculated, and how to turn it into a daily calorie and macro target that fits eating in Singapore.

What is TDEE?

TDEE is the total energy your body uses in 24 hours. It has a few components, but for practical purposes it's your resting metabolism scaled up by how much you move:

• BMR (Basal Metabolic Rate) — energy burned at complete rest. This is the biggest chunk, usually 60–70% of TDEE.
• Activity — everything from walking to the MRT, to desk fidgeting, to a gym session.

Multiply BMR by an activity factor and you get TDEE. Eat at TDEE and your weight holds steady; create a gap in either direction and your weight moves.

BMR vs TDEE: the difference

People use these interchangeably, but they're not the same:

TDEE is always larger. The gap between them is your activity — which is the one part you control day to day.

How TDEE is calculated

The TDEE Calculator uses the Mifflin-St Jeor equation, widely regarded as the most accurate BMR formula for the general population:

• Men: BMR = (10 × weight kg) + (6.25 × height cm) − (5 × age) + 5
• Women: BMR = (10 × weight kg) + (6.25 × height cm) − (5 × age) − 161

Then multiply by an activity factor:

Worked example. A 30-year-old man, 70kg, 170cm: BMR = 700 + 1,062.5 − 150 + 5 = 1,618 kcal. At a moderate activity level (×1.55), his TDEE is about 2,508 kcal/day.

Most desk-bound Singaporeans who train a few times a week sit between Light and Moderate. Be honest here — over-stating activity is the single most common reason a TDEE estimate ends up too high.

Setting calorie targets from your TDEE

Once you know your TDEE, your goal sets the adjustment:

• Fat loss: 10–20% below TDEE. A 10% deficit is gentle and sustainable; 20% is faster but harder to hold.
• Maintenance: eat at TDEE.
• Muscle gain: 10–20% above TDEE. A smaller surplus means leaner gains with less fat.

For our 2,508 kcal example: mild cut ≈ 2,257 kcal, aggressive cut ≈ 2,006 kcal, mild bulk ≈ 2,759 kcal. The calculator shows all of these automatically.

A common mistake is crash-dieting far below BMR. Eating under your resting requirement for weeks on end is hard to sustain, costs you muscle, and usually ends in a rebound. A moderate deficit you can actually live with beats an aggressive one you quit.

Macros: protein, carbs and fat

Calories decide whether you lose or gain weight; macros influence body composition and how you feel. A balanced starting split is 30% protein / 40% carbs / 30% fat:

• Protein (4 kcal/g) — preserves muscle in a deficit and drives muscle gain in a surplus. Worth prioritising.
• Carbohydrate (4 kcal/g) — your main training fuel; rice, noodles and bread are fine within your target.
• Fat (9 kcal/g) — needed for hormones; don't drop it too low.

If your focus is muscle, push protein toward 1.6–2.2g per kg of bodyweight and fit carbs and fat around it. Eating in Singapore makes protein easy — chicken rice (hold half the rice), fish soup, yong tau foo with extra protein items, and tofu dishes all stack up well.

Putting it together

1. Calculate your TDEE with the TDEE Calculator.
2. Pick a goal and set your calorie target (deficit, maintenance or surplus).
3. Hit your protein target first, then fill remaining calories with carbs and fat.
4. Track your weight trend for 2–3 weeks and adjust by 100–200 kcal if needed.

Pair it with the Calorie Calculator for a second view, the Protein Intake Calculator to set your protein floor, and the BMI Calculator to check where you sit against Singapore's Asian thresholds.

Bottom line

TDEE is the anchor for any nutrition goal: BMR from the Mifflin-St Jeor formula, multiplied by an honest activity factor. Eat 10–20% below it to lose fat, at it to maintain, above it to gain — and lead with protein when setting macros. No estimate is perfect, so use the number as a starting point and let your real weight trend over a few weeks fine-tune it. Run yours through the TDEE Calculator to get maintenance calories, cut and bulk targets, and a macro breakdown in one go.