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

Construction / Rooms

Stair Calculator

Plan a straight stair run from the floor-to-floor rise: number of steps, individual riser height, and tread depth that f...

basic

5,362 4.0 1 min

Everyday Life

Reading Speed and Time to Finish Book Calculator

Calculates how long it takes to read a book based on reading speed (WPM) and total word count. Average adult reading spe...

basic

12,448 4.8 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

5,991 4.1 1 min

Sports

American Football QB Passer Rating Calculator

Calculates the official NFL passer rating (0–158.3 scale) from completions, attempts, passing yards, touchdowns, and int...

basic

8,499 4.0 1 min

Sports

NBA Assist-to-Turnover Ratio Calculator

Compute the NBA assist-to-turnover ratio — the basic point-guard efficiency stat: AST / TO. Career elite point guards av...

basic

2,854 4.9 1 min

Sports

IPF GL Points for Raw Powerlifting Calculator

Compute IPF GL Points — the official cross-bodyweight scoring used by the International Powerlifting Federation (replaci...

basic

17,103 4.8 1 min

Sports

Lottery Jackpot Expected Value Calculator

Compute the expected value (and the EV-to-cost ratio) of a single lottery ticket given the jackpot, the per-ticket cost,...

basic

16,382 4.3 1 min

Everyday Life

Soil Truckload Calculator

Compute the number of dump-truck loads needed to haul a given volume of soil, given the truck capacity in cubic yards. S...

basic

5,478 4.9 1 min

Health

ROX Index for High-Flow Nasal Cannula Failure Prediction Calculator

Compute the ROX index, a validated tool for predicting high-flow nasal cannula (HFNC) failure in acute hypoxaemic respir...

basic

15,972 3.9 1 min

Everyday Life

ADA Ramp Grade Calculator

Compute the run length and slope percentage of an accessibility ramp from the rise. Reports whether the slope meets ADA'...

basic

22,832 4.1 1 min

Finance

Free Cash Flow Yield from FCF and Market Cap Calculator

Compute free-cash-flow yield — the per-dollar-of-equity cash earnings yield, often used instead of E/P. FCF yield = trai...

basic

6,966 4.0 1 min

Sports

Cycling W' (Anaerobic Capacity) from Two-Effort CP Test Calculator

Compute Critical Power (CP) and the work-capacity above CP, W' (in joules) from a 2-effort all-out test (typically a 3-m...

basic

11,235 4.8 1 min

Showing 73 to 84 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

Stair Calculator

Reading Speed and Time to Finish Book Calculator

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

American Football QB Passer Rating Calculator

NBA Assist-to-Turnover Ratio Calculator

IPF GL Points for Raw Powerlifting Calculator

Lottery Jackpot Expected Value Calculator

Soil Truckload Calculator

ROX Index for High-Flow Nasal Cannula Failure Prediction Calculator

ADA Ramp Grade Calculator

Free Cash Flow Yield from FCF and Market Cap Calculator

Cycling W' (Anaerobic Capacity) from Two-Effort CP Test Calculator

Unit Conversion Without Typos: A Field Guide

Running Pace: How to Read Splits Without Getting Lost