This is a complete, production-ready, single-file web application. It uses a modern "glassmorphism" design language, responsive CSS grid/flexbox layouts, and Vanilla JavaScript for all calculations and state management.
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Free Marshmallow Roasting Distance & Heat Calculator
Marshmallow Roasting Calculator
Calculate the perfect roast distance for your next snack.
Estimated Roast Time
0:00
Distance: 15cm
Safety First!
Always maintain a safe distance from active flames.
Never roast marshmallows indoors unless using a dedicated appliance.
Keep a water bucket or fire extinguisher nearby.
Wait 30 seconds before eating to prevent tongue burns.