Instructions to make a lab coat for kids

Updated July 20, 2017

Costumes are a fun part of imaginative play, adding a delightful degree of realism to pretend situations. If your child is an aspiring scientist, they will love wearing a lab coat of their own. You can make a child-sized coat using an old T-shirt as a pattern.

Put an T-shirt on your child. Measure the distance from the hem of the shirt to just above the knee.

Use a seam ripper to carefully deconstruct the shirt. Cut a straight line up the centre of the front of the shirt from the hem to the neckline, dividing it in half.

Use the T-shirt pieces as a pattern for the lab coat pieces. Add several inches to the sleeves to make them three-quarter length and use the measurement you took before you cut the shirt to length the coat to the knee.

Cut the lab coat pieces out of white cotton fabric. Be sure to leave an allowance for seams and hems all the way around.

Lay the pieces of the coat together and pin along the seams with straight pins.

Sew along the pinned edges to secure the pieces together.

Fold over all raw edges and pin them into place. Iron the edges flat and sew to hem.

Cut two large rectangles out of white cotton and hem the edges. Sew onto the front of the coat with the top sides left open to form pockets.

Sew a row of buttons down one side of the front opening of the coat. Line up the other side of the coat and cut a small slit for each button to go through. Use a needle and white thread to blanket stitch around the edges of the hole.


For extra detail, cut a small square medical cross from red felt and sew it to the breast of the lab coat.

Things You'll Need

  • T-shirt
  • Seam ripper
  • White cotton fabric
  • White buttons
  • Straight pins
  • Iron
  • Ironing board
  • Sewing machine
  • Sewing needle
  • White thread
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