T-Shirt Size Calculator by Height and Weight
Finding the perfect t-shirt size can be challenging when shopping online. Our t-shirt size calculator uses your height and weight to recommend the ideal size for a comfortable fit. Whether you’re buying casual tees, dress shirts, or athletic wear, this tool helps you make informed decisions and avoid sizing mistakes.

How to Measure Your Body for T-Shirt Size
Accurate measurements are essential for finding the right t-shirt size. Here’s how to measure yourself properly:
Height Measurement
- Stand straight against a wall without shoes
- Keep your head level and look straight ahead
- Mark the highest point of your head on the wall
- Measure from the floor to the mark using a tape measure
- Record your height in centimeters or feet and inches
Weight Measurement
- Use a digital scale for accurate readings
- Weigh yourself in the morning before eating
- Wear minimal clothing for consistency
- Step on the scale and wait for a stable reading
- Record your weight in kilograms or pounds
Body Type Assessment
- Slim: Narrow shoulders and minimal muscle mass
- Average: Proportional build with moderate muscle tone
- Athletic: Well-developed muscles and broad shoulders
- Broad: Wider frame with larger chest and shoulder measurements

How to Use the T-Shirt Size Calculator
Our t-shirt calculator is designed for simplicity and accuracy. Follow these steps to get your perfect size:
Step-by-Step Guide
- Select your gender from the dropdown menu
- Choose your preferred measurement units (metric or imperial)
- Enter your height in centimeters or feet and inches
- Input your weight in kilograms or pounds
- Select your body build type from the options provided
- Choose your preferred fit style (tight, regular, or loose)
- Click “Calculate Size” to get your recommendation
- Use the “Reset” button to clear all inputs and start over
Understanding Size Recommendations
The calculator considers multiple factors to provide accurate sizing. Your body measurements, build type, and fit preference all influence the final recommendation. The tool accounts for different t-shirt brands and styles to give you the most suitable size.
Size Conversion Features
Our calculator supports international sizing standards. You can input measurements in both metric and imperial units. The tool automatically converts between systems and provides size recommendations that work globally.
Tips for Best Results
- Take measurements at the same time of day for consistency
- Consider the t-shirt material and brand when selecting fit preference
- Check the brand’s specific size chart when possible
- Account for shrinkage if buying cotton t-shirts
- Consider your activity level when choosing fit style
Understanding T-Shirt Sizes and Fits
T-shirt sizing varies between brands and styles. Understanding how different factors affect fit helps you make better purchasing decisions. Consider fabric weight, cut style, and intended use when selecting your size.
Size Chart Basics
Standard t-shirt sizes range from XS to 5XL. Each size corresponds to specific chest, length, and shoulder measurements. However, these measurements can vary significantly between manufacturers and clothing styles.
Fabric Weight and Fit
T-shirt weight affects how the garment fits and feels. Lighter fabrics (120-150 GSM) provide a more fitted feel, while heavier fabrics (180-220 GSM) offer more structure and durability. Consider fabric weight when choosing your preferred fit style.
FAQs about T-Shirt Size Calculator by Height and Weight
T-shirt size is calculated using your height, weight, body type, and fit preference. The calculator uses algorithms that consider proportional relationships between these measurements to recommend the most suitable size from XS to 5XL.
A person weighing 70 kg typically wears size M or L depending on their height and body type. For average height (170-180 cm), size M usually fits well. Taller individuals might prefer size L for better length and proportional fit.
T-shirt weight is measured in GSM (grams per square meter) or oz/yd². To calculate, weigh a 1m² sample of fabric. Typical weights range from 120 GSM (lightweight) to 220 GSM (heavyweight). Higher GSM indicates thicker, more durable fabric.
Equal tee weight calculation involves measuring fabric samples from different areas of the garment and averaging the results. This ensures consistent weight distribution and quality control across the entire t-shirt.
Yes, 180 GSM is considered premium quality for t-shirts. It offers excellent durability, shape retention, and comfort. This weight provides the perfect balance between breathability and substantial feel, making it ideal for everyday wear and long-lasting use.
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