BEng Civil Engineering; 8 years in project management.

Marcus Laurent

Contributor, Construction & Everyday Life

0 calculators 0 articles Member since Jun 2026

About

Marcus focuses on the "practical math" calculators: home projects, construction, fuel, and travel. His goal is simple — give the reader a number they can actually use on site or on the road in under 30 seconds.

Before writing full-time, he spent eight years in infrastructure and residential construction project management.

Areas of expertise

Construction math Home projects Travel planning Fuel economy

Education & credentials

BEng Civil Engineering — Polytechnique Montréal

Everyday Life

Paver Quantity Calculator

Compute the number of pavers needed to cover a rectangular patio or walkway from the area to be paved and the dimensions...

basic

10,821 4.5 1 min

Physics / Mechanics

Drag Force from Coefficient, Fluid Density, Area, and Velocity Calculator

Calculates drag force F_d = ½ · ρ · v² · C_d · A, where ρ is fluid density, v is velocity, C_d is drag coefficient, and...

basic

18,272 3.8 1 min

Health

Body Roundness Index (BRI) from Waist and Height Calculator

Calculates Body Roundness Index BRI as a proxy for body fat distribution that outperforms BMI for cardiometabolic risk....

basic

5,549 3.9 1 min

Health

Fagerström Nicotine Dependence Score Calculator

Computes the Fagerström Test for Nicotine Dependence (FTND) from 6 questions. Score 0–2 = very low; 3–4 = low; 5 = mediu...

basic

7,982 4.9 1 min

Finance

Enterprise Value (EV) from Market Cap, Debt, Preferred, NCI, and Cash Calculator

Compute the enterprise value (EV) — the takeover or capital-structure-neutral value of a firm: market cap + total debt +...

basic

20,338 4.3 1 min

Construction / Materials

Paint Calculator

Estimate how many gallons or liters of paint you need, allowing for coats and coverage.

basic

19,844 4.3 1 min

Everyday Life

U-Value Window Heat Loss Calculator

Compute the heat-loss rate through a window from its U-value (BTU/h/ft²/°F), area, and inside-to-outside temperature dif...

basic

20,611 4.7 1 min

Everyday Life

Currency Exchange with Fee Calculator

Converts an amount at a given exchange rate, subtracts a percentage fee, and shows the received amount, fee paid, and ef...

basic

6,945 4.0 1 min

Sports

Golf Stableford Points Calculator

Compute Stableford points from gross score, par and handicap strokes received on a hole using standard scoring (eagle =...

basic

6,607 4.6 1 min

Everyday Life

Crown Molding Quantity Calculator

Compute the linear feet of crown molding needed for a rectangular room (perimeter), the number of standard 12-foot stick...

basic

13,503 4.0 1 min

Sports

Chess Elo Rating Update Calculator

Compute the new Elo rating of a chess player after a single game using R' = R + K · (S − E), where E = 1 / (1 + 10^((R_o...

basic

20,970 4.2 1 min

Everyday Life

Duct CFM Sizing from Room Area Calculator

Compute the recommended supply-duct airflow (CFM) for a room from its square footage, ceiling height, and target air-cha...

basic

24,522 4.3 1 min

Showing 169 to 180 of 359 results

guide Conversions

Unit Conversion Without Typos: A Field Guide

Most unit-conversion mistakes are dumb mistakes — swapped factors, dropped decimals, wrong direction. A short guide to not making them.

Marcus Laurent

Mar 10, 2026 3 min

tutorial Fitness

Running Pace: How to Read Splits Without Getting Lost

Pace, splits, and goal times talk about the same thing from three different angles. A short guide to keeping them straight mid-race.

Marcus Laurent

Jan 30, 2026 3 min

Calcify

Browse categories

Marcus Laurent

Paver Quantity Calculator

Drag Force from Coefficient, Fluid Density, Area, and Velocity Calculator

Body Roundness Index (BRI) from Waist and Height Calculator

Fagerström Nicotine Dependence Score Calculator

Enterprise Value (EV) from Market Cap, Debt, Preferred, NCI, and Cash Calculator

Paint Calculator

U-Value Window Heat Loss Calculator

Currency Exchange with Fee Calculator

Golf Stableford Points Calculator

Crown Molding Quantity Calculator

Chess Elo Rating Update Calculator

Duct CFM Sizing from Room Area Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost