Grout Calculator

Last updated: 2026-08-24

Grout Calculator — Calculate kg of grout based on tile size and joint width.
Inputs
Result
Enter values and press Calculate

How to use it

  1. Calculate length of juntas: 40m┬▓ ├À 0.30m ├ù 2 = 266.67 ml
  2. Calculate volume of junta: 266.67m × 0.003m × 0.01m = 0.008 m³
  3. Calculate weight: 0.008m³ × 1600 kg/m³ = 12.8 kg
  4. Apply factor waste: 12.8 kg × 1.15 = 14.72 kg of fragüe

Common mistakes

  • ⚠️ Use frag├╝e incorrecto to The rate of junta (ep├│xico to zonas h├║medas)
  • ⚠️ Not limpiar The exceso of frag├╝e antes of que seque
  • ⚠️ Apply frag├╝e in juntas muy anchas without Use frag├╝e especial

Worked example

Calculate fragüe/lechada to 40m² of cerámica of 30×30cm with junta of 3mm and thickness of pieza 10mm.

To {area} m² of {tam_pieza_cm}×{tam_pieza_cm}cm with junta of {ancho_junta_mm}mm need {fragüe_kg} kg of fragüe ({sacos_ud} bags). length total of juntas: {long_juntas_ml} ml.

Input guide

FieldTypical range
areaarea total colocada
grosor_pieza_mmEspesor of the baldosa (afecta volume of junta)
tam_pieza_cmTamaño of the pieza cerámica
ancho_junta_mmJuntas standard: 2-5mm according to rate of piso