Calculators made in Portugal
Free, no sign-up, built for the UK. For everyday life, home improvement, finance and more.
Categories
Calculators organised by topic. We're starting with Construction — new categories coming soon.
Construction & DIY
Free calculators for building materials, project costs and quantities — sized for UK homes, trades and standards.
Health
Em breve.
Finance
Free calculators for mortgages, loans, savings and everyday money — clear formulas, no jargon, no sign-up.
Conversions
Ferramentas gratuitas para converter datas, percentagens e unidades em segundos. Em português europeu, sem anúncios a atrapalhar o resultado.
Everyday life
Ferramentas gratuitas para dividir contas, planear mudanças e decidir compras do dia-a-dia. Em português europeu, para as contas que ninguém te ensinou a fazer.
Cooking
Ferramentas gratuitas para converter medidas, ajustar porções e acertar tempos de cozedura. Em português europeu, para cozinhares sem complicações.
Ecology
Ferramentas gratuitas para calcular pegada de carbono, poupança de água e energia em casa. Em português europeu, com números claros, sem marketing verde.
Maths
Ferramentas gratuitas para calcular áreas, volumes, equações e estatística. Em português europeu, com a fórmula sempre à vista, passo a passo.
Study
Ferramentas gratuitas para calcular médias, notas necessárias e créditos ECTS. Em português europeu, ajustadas ao sistema de ensino português.
Popular calculators
The ones visitors use most.
Wall paint calculator
Calculate how many litres of paint you need to paint a room. Includes margin for touch-ups and cost estimate.
Cement bags for concrete
Calculate how many cement bags you need for concrete based on volume and mix ratio, with a 5% waste margin built in.
Tile quantity calculator
Calculate how many tiles you need to cover a wall or floor with waste margin and cost estimation.
Bricks needed
Calculates the exact number of hollow clay blocks required for a wall, accounting for mortar joints and waste. Includes optional cost estimation.
Interior painting cost
Estimates the total cost of painting a home in the UK including walls, ceilings, labour, materials and regional variations.
Roof area
Convert floor plan dimensions to actual sloped roof area using incline and roof type. Essential for material ordering.
Cost per m²
Calculate the total cost of a building project per square metre in the UK, accounting for project type, finish quality and regional labour variations.
Flooring cost
Estimates the cost of wood, laminate or parquet flooring per m², including materials, installation and wastage.
Waterproofing cost
Estimate waterproofing costs per m² for UK terraces, basements and pools. Compare four systems with labour costs included or materials only.