How Many Calories Does 90 Minutes Of Yoga Burn? | Real-World Ranges

Calories Burned During A 90-Minute Yoga Class

Energy burn in yoga comes down to three levers: your body weight, the class style, and how continuously you move. Scientists use metabolic equivalents, or METs, to label effort. One MET is resting; activities get higher numbers as effort rises. The Compendium of Physical Activities lists yoga styles from ~2.0 METs for breathing work to ~4.0 METs for power flow, with 3.3 METs for sun salutations and ~2.5 METs for classic Hatha. The standard calorie formula is: calories per minute = 0.0175 × MET × body weight (kg); multiply by total minutes for your session (90 here). These references come from the CDC’s MET page and the peer-reviewed Compendium table.

Fast Estimates You Can Trust

Use this range to gauge a single long class:

• Gentle/breath-led work (~2.0 METs): around 220 calories at 70 kg, more if you weigh more.
• Classic Hatha (~2.5 METs): around 275 calories at 70 kg.
• Sun salutations (~3.3 METs): around 330–355 calories at 70–75 kg.
• Power or hot flow (~4.0 METs): around 440 calories at 70 kg, higher with added heat and pace.

Broad Calculator Table (90 Minutes)

The table below gives realistic ranges across common body weights for two popular styles. Numbers use MET values published in the Compendium and the standard kcal equation.

Body Weight	Hatha (~2.5 METs)	Power/Vinyasa (~4.0 METs)
50 kg (110 lb)	~197 kcal	~315 kcal
68 kg (150 lb)	~268 kcal	~428 kcal
82 kg (180 lb)	~323 kcal	~517 kcal
100 kg (220 lb)	~394 kcal	~630 kcal

Planning meals around sessions gets easier once you set your daily calorie needs.

What Drives The Burn In Long Yoga Classes

Style And Sequence

Rhythmic sequences such as sun salutations raise the heart rate compared with long, supported holds. The Compendium lists classic Hatha at roughly 2.5 METs, sun salutations around 3.3 METs, and power flow at ~4.0 METs. Those values reflect measured or consensus energy cost in lab and field studies.

Heat And Pace

Heated rooms increase sweat and often push pace. That lifts METs closer to the upper end for flow classes. Hydration matters in longer sessions, since a 90-minute block gives less rest time.

Body Size And Muscle Mass

Heavier bodies expend more energy at the same MET because the formula multiplies MET by kilograms. Muscle mass also helps fuel turnover when classes include strong standing work, arm balances, and repeated transitions.

Turning METs Into Your Number

Step-By-Step Method

Here’s a simple way to personalize the estimate:

1. Convert your weight to kilograms (divide pounds by 2.2).
2. Pick a MET value that matches the class type (2.0–2.5 for gentle, ~3.3 for sun salutations, ~4.0 for power flow).
3. Use calories per minute = 0.0175 × MET × kg.
4. Multiply by 90 for a full session.

Public sources explain both the MET definition and the equation used in clinics and sports labs. See the CDC’s overview of MET intensity and the Ainsworth Compendium’s published MET codes for yoga styles.

Reality Check Against Published Calorie Tables

Harvard’s calorie table puts a 30-minute stretching/Hatha block at roughly 120–168 calories across 125–185 lb. Multiply that by three to reach 90 minutes and you’ll land in the same ballpark as the MET-based math for moderate flow. Here’s their reference list of common activities with yoga figures: Harvard calorie table.

Calories Burned Over 90 Minutes: Style Comparison

Below is a quick comparison of typical MET values and the 90-minute burn at ~70 kg body weight.

Yoga Style	METs	~90-Min Calories (70 kg)
Hatha (steady holds)	~2.5	~276 kcal
Sun Salutations (flow blocks)	~3.3	~331 kcal
Power/Heated Flow	~4.0	~441 kcal

How To Nudge The Number Up Or Down

Ways To Burn More In The Same 90 Minutes

• Choose a faster flow: sequences with repeated chaturangas and standing series keep the heart rate higher.
• Shorten rests: swap long child’s-pose breaks for two slow breaths, then rejoin the flow.
• Go heavier on legs: add tempo to chair, warrior transitions, and balance work.
• Mind the room: warmer settings raise perceived effort; hydrate and pace yourself.

Ways To Keep It Lower When You Need Recovery

• Pick restorative blocks: props, long holds, and breath work dial down energy cost.
• Slow the vinyasa count: fewer push-up transitions save the shoulders and reduce burn.
• Cool room, steady pace: heat adds load; a neutral room helps you stay fresh for form.

Programming Long Sessions Without Guesswork

Match Training Goals To Class Types

If your week already includes runs or rides, a strong vinyasa slot can double as a light cardio day while still building mobility. If you’re lifting, a gentler class helps with active recovery and range of motion.

Balance Energy With Food And Fluids

Long classes feel better with stable blood sugar. A light carbohydrate source 60–90 minutes before class and a salty drink for heated rooms works well for many people. After class, pair protein with carbs to refill and repair. The numbers from the tables above give you a target window.

Track Progress With Simple Signals

• Breath pace: you should still speak in short phrases during moderate flow; stronger classes leave you speaking in single words.
• Perceived exertion: a 1–10 scale helps you keep two long classes from becoming all-out efforts.
• Heart-rate trends: a wearable offers objective data across styles and teaches you which teachers run hotter classes.

Why Long Yoga Blocks Can Still Help With Weight Goals

Even gentle sessions support posture, flexibility, and stress regulation, which can help eating patterns over the week. Harvard’s overview of yoga and weight maintenance points to mindful eating as one pathway. Pairing a steady weekly class with step goals or low-impact cardio creates a reliable energy deficit without beating up joints.

Sample 90-Minute Flow Templates

Steady Hatha (Lower Burn, Higher Mobility)

Think simple standing series, hip openers, and core bracing. Keep transitions smooth, not rushed. You’ll land near the 2.5 MET mark and finish refreshed.

Sun-Salutation Ladder (Middle Burn)

Build from five to twenty rounds across the hour, add balances and gentle backbends, and finish with longer floor work. Expect ~3.3 METs on average.

Power/Heated Flow (Higher Burn)

String together chaturanga-heavy sequences, standing splits, and strength-focused drills. Keep water handy and plan a cool-down to bring the heart rate down before savasana.

Method Notes And Sources

The energy estimates in this guide use two widely accepted references. First, the CDC explains how MET intensity relates to moderate and vigorous activity. Second, the 2011 update of the Compendium lists MET codes for yoga styles such as Hatha (~2.5), Power (~4.0), and sun salutations (~3.3). A common teaching handout from university sports-medicine clinics shows the same kcal/min formula used here: 0.0175 × MET × kg × minutes.

Independent cross-check: Harvard’s activity list shows calories for stretching/Hatha at three body weights over 30 minutes. Scaling to 90 minutes lines up with the MET-based numbers for moderate flow, which is a helpful sanity check for your plan.

Bottom Line For Planning Long Classes

Over a 90-minute block, lighter styles hover near 200–330 calories for many adults, while strong flows can reach the 400–600+ range at higher body weights. Use the tables to set expectations, pick the style that fits your training week, and fuel accordingly.

Want an easy add-on for active days? Try our walking for health guide.