MONUMAKE Calculators

MONUMAKE Calculators is a set of practical metric calculations for construction — for designers, site managers, tradespeople and self-builders. All calculations are free, work offline and need no sign-up.

CONSTRUCTION ASSEMBLIES
• Layers with thickness, λ and density
• Thermal resistance R, U-value, total thickness and weight
• Save multiple assemblies

STAIRCASE
• Number and height of risers from the floor-to-floor height
• Checked against the rules of the selected country: Czechia (ČSN 73 4130), Slovakia, Germany (DIN 18065), Poland, France, Italy, Spain
• Step rule 2h + b, riser, going and pitch; stairs inside a dwelling or common stairs
• Pitch and length of the flight, headroom clearances

LAND PLOT & REGULATIONS
• Plots and their areas
• Site coverage, green area ratio with paved areas, floor area ratio (FAR), rainwater infiltration, minimum plot size, height limits
• Turn each regulation on or off to match your zoning plan
• PASS / FAIL assessment, multiple saved options

CALCULATIONS
• Rule of three
• Volume and area of a cylinder
• Roof height and pitch (in % and degrees)
• Linear interpolation of height
• kW ↔ A with a recommended breaker (230 V / 400 V)

CONVERSIONS
• a·10ⁿ notation ↔ decimal number
• kN ↔ kg, degrees ↔ %, °C ↔ °F

SPECIAL
• Air humidity: dew point, absolute humidity, whether ventilating helps, mould and surface condensation risk
• Thermal expansion of materials
• Running cost of an appliance

PREMIUM (one-time purchase, no subscription)
• Export assemblies, staircases and plot regulations to PDF with your name as the preparer
• Export individual proposals to a file
• Unlimited saving (5 assemblies, 5 staircases and 5 land plots are free)
The full data backup stays free.

On tablets, calculators open next to the list — a layout made for the big screen.

No account, no ads, no tracking. Your data stays only on your device.

Calculation results are indicative and do not replace project documentation or a professional assessment. Always verify them against the applicable standards and regulations.

Recent changes:
• New: Land plot & regulations — multiple saved options, green area ratio with paved areas, floor area ratio, rainwater infiltration, minimum plot size and height limits
• New: Air humidity — dew point, whether to ventilate, mould risk
• Staircases are checked against the rules of 7 countries (CZ, SK, DE, PL, FR, IT, ES)
• Settings with a full data backup; 8 languages
• Calculators Premium: PDF exports and unlimited saving