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

Board-Foot Lumber Calculator

Compute the number of board feet for one or more pieces of lumber from the nominal thickness, width, and length: BF = T_...

basic

17,410 3.9 1 min

Everyday Life

Roofing Nail Quantity Calculator

Compute the number of roofing nails needed for an asphalt-shingle roof, given the roof area in squares (1 square = 100 f...

basic

24,403 4.4 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

24,132 4.6 1 min

Sports

Boxing Punch Kinetic Energy from Mass and Fist Speed Calculator

Compute the peak kinetic energy of a punch: KE = ½ · m_eff · v², where m_eff is the effective striking mass (glove + for...

basic

5,603 4.1 1 min

Everyday Life

Rain-Barrel Collection Volume Calculator

Estimate the gallons of rainwater collected from a roof during a storm: gallons = roof_area_sqft × rainfall_in × 0.6234...

basic

23,949 4.6 1 min

Food / Party Planning

Wedding Cake Servings Calculator

Compute the approximate number of standard wedding-cake servings from the diameters of up to 4 round tiers, using the Wi...

basic

2,094 4.0 1 min

Sports

Cricket Net Run Rate (NRR) from Runs and Overs Calculator

Compute a team's net run rate over a tournament, the most common ICC tiebreaker for league-stage standings. NRR = (Total...

basic

8,871 4.9 1 min

Everyday Life

Stairs Riser/Tread Count from Total Rise and Run Calculator

Compute the number of risers, individual riser height, individual tread depth, and total horizontal run for a flight of...

basic

986 4.4 1 min

Ecology / Transport

Flight Emissions Calculator

Estimate the CO₂ equivalent emissions per passenger from a flight, given the great-circle distance and seating class. Us...

basic

10,997 4.9 1 min

Everyday Life

Concrete Blocks Needed for a Wall Calculator

Compute the number of concrete masonry units (CMU blocks) needed to build a wall, including a default 5-10 % waste facto...

basic

2,227 4.3 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

18,982 4.4 1 min

Sports

Rugby Union Points-Per-Match from Tries, Conversions, Penalties, Drop Goals Calculator

Compute total rugby union match points from the four scoring methods: try (5), successful conversion (2), penalty kick (...

basic

18,295 4.7 1 min

Showing 325 to 336 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

Board-Foot Lumber Calculator

Roofing Nail Quantity Calculator

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

Boxing Punch Kinetic Energy from Mass and Fist Speed Calculator

Rain-Barrel Collection Volume Calculator

Wedding Cake Servings Calculator

Cricket Net Run Rate (NRR) from Runs and Overs Calculator

Stairs Riser/Tread Count from Total Rise and Run Calculator

Flight Emissions Calculator

Concrete Blocks Needed for a Wall Calculator

Deck Stain Coverage Calculator

Rugby Union Points-Per-Match from Tries, Conversions, Penalties, Drop Goals Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost