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

Physics / Mechanics

Stress, Strain & Young's Modulus Calculator

Calculates axial stress, strain, and deformation of a structural member from applied force, cross-sectional area, modulu...

basic

5,266 4.1 1 min

Everyday Life

Gutter Downspout Sizing Calculator

Estimate the number of 2"×3" (handles ~600 ft² roof area) or 3"×4" (~1200 ft²) downspouts needed for a roof, based on th...

basic

15,008 4.0 1 min

Everyday Life

Deck Stain Coverage Calculator

Compute the gallons of deck stain needed to coat a deck of given square footage given the per-gallon coverage rate (typi...

basic

6,882 4.4 1 min

Everyday Life

Baby Formula Scoops Calculator

Compute the number of scoops of powdered baby formula and the corresponding water volume needed for a target feed in oun...

basic

4,850 4.8 1 min

Construction / Materials

Decking Boards Calculator

Compute the number of decking boards needed to cover a rectangular deck from board dimensions and a small wastage allowa...

basic

14,007 4.6 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

6,166 4.1 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

5,875 4.2 1 min

Everyday Life

Snow Shoveling Time Calculator

Estimate the time to shovel a driveway from its area and snow depth, given a typical clearance rate (≈ 25 sq ft of light...

basic

12,277 4.7 1 min

Everyday Life

Two-Stroke Engine Fuel-Mix Calculator

Compute the ounces of two-stroke oil to add per US gallon of gasoline for a chosen fuel-to-oil mix ratio (e.g. 50:1, 40:...

basic

16,538 4.9 1 min

Sports

Sprint Speed (mph and m/s) from Distance and Time Calculator

Compute average sprint speed from a timed run over a known distance. Reports speed in m/s, km/h, mph, and as a 100 m equ...

basic

10,156 3.9 1 min

Health

Duke Activity Status Index (DASI / METs) Calculator

The DASI questionnaire estimates peak oxygen uptake (VO₂ peak) and functional capacity in METs from 12 weighted activity...

basic

6,264 4.8 1 min

Everyday Life / Travel

Fuel Cost Calculator

Estimate trip fuel cost from distance, fuel economy, and price per unit.

basic

2,880 4.1 1 min

Showing 121 to 132 of 386 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

May 14, 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 24, 2026 3 min

Best Free Calculator

Browse categories

Marcus Laurent

Stress, Strain & Young's Modulus Calculator

Gutter Downspout Sizing Calculator

Deck Stain Coverage Calculator

Baby Formula Scoops Calculator

Decking Boards Calculator

Body Roundness Index (BRI) from Waist and Height Calculator

Golf Stableford Points Calculator

Snow Shoveling Time Calculator

Two-Stroke Engine Fuel-Mix Calculator

Sprint Speed (mph and m/s) from Distance and Time Calculator

Duke Activity Status Index (DASI / METs) Calculator

Fuel Cost Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost