Praktické

Kalkulačka velikosti pokoje

Room Size Calculator

Délka (m)

Šířka (m)

Výška

What is Room Size Calculator?

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Kalkulačka velikosti místnosti určuje podlahovou plochu, plochu stěn a objem. Nezbytné pro dimenzování podlah, barev, tapet a HVAC systému.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

Vzorec

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f(x)Plocha = délka × šířka | Objem = délka × šířka × výška | Obvod = 2 (délka + šířka)

How to Room Size Calculator

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1Floor area = Length × Width
2Wall area = 2 × (Length + Width) × Height
3Volume = Length × Width × Height
4For paint: deduct doors/windows (~20%); divide by coverage per litre

Worked Examples

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Example 1

Given:4.5m × 3.5m room, 2.4m ceiling

Výsledek:Floor: 15.75m²; Walls: 38.4m²; Volume: 37.8m³

Real-World Applications

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Home renovation material quantity estimation

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Construction project planning and cost estimation

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Contractor quotes and materials ordering

Material Requirements

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Material	Coverage/unit	Estimate for 20m² floor
Flooring	1:1	20m² + 10% wastage
Emulsion paint	10–12m²/litre	~2L walls (one coat)
Wallpaper roll	~5.4m²	~4 rolls for 4 walls
Carpet	1:1	20m² + 5% wastage

Frequently Asked Questions

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What is Room Size?

A room size calculator determines floor area, wall area, and volume. Essential for flooring, paint, wallpaper, and HVAC system sizing

How accurate is the Room Size calculator?

The calculator uses the standard published formula for room size. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Room Size calculator use?

This calculator works with inches, percentages, watts. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Room Size calculator use?

The core formula is: Floor area = Length × Width. Each step in the calculation is shown so you can verify the result manually.

References

›Room measurement — Wickes

Formula-verified for precision

Reviewed October 2026

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