Jehan Wadia

Author

Jehan Wadia

Chief Executive Officer

1172 calculators

8 areas of expertise

About

Jehan Wadia is a seasoned entrepreneur with a Bachelor of Applied Science (BASc) in Computer Science from the University of Ottawa. With expertise in both computer science and marketing, he has successfully blended technical innovation with strategic business insights. His background enables him to create solutions that leverage technology to solve complex problems, while his marketing acumen drives growth and customer engagement in competitive markets. Passionate about innovation, he excels at bridging the gap between technology and business.

Areas of expertise

Golf Marketing Finance Computer Science Data Science Physics Mathematics Business

Education

University of Ottawa

Bachelor of Applied Science - BASc, Computer Science

Road Tax Calculator

Estimate Malaysian road tax by engine cc, region, and vehicle type. Covers Peninsular, Sabah, Sarawak, Labuan. Includes step-by-step math and comparison.

Roblox DevEx Calculator

Free Roblox DevEx Calculator to convert Robux to real money. Quickly estimate your Developer Exchange payout and USD earnings from Roblox game revenue.

Open Landscaping

Rock Calculator

Estimate rock volume in cubic yards and tons for 5 material types. Add multiple zones as rectangles, circles, or triangles. Includes 10% overage buffer.

ROI Calculator

Calculate your return on investment quickly with our free ROI calculator. Measure profitability, compare investments, and make smarter financial decisions.

Open Construction

Roof Area Calculator

Calculate your roof area instantly with our free roof area calculator. Enter dimensions, pitch, and slope to estimate roofing materials needed accurately.

Open Construction

Roof Pitch Calculator

Use our free roof pitch calculator to quickly determine roof angle, slope ratio, and rise over run. Perfect for roofing projects and construction planning.

Open Construction

roof truss calculator

Calculate rise, rake length, and truss count from span, pitch, and overhang. Covers Fink, attic, scissor, and mono types with a board-foot cut list.

Open Construction

Roofing Calculator

Use our free roofing calculator to estimate materials, costs, and square footage for your roof project. Get accurate results for shingles, metal & more.

Root Calculator

Compute square, cube, or nth roots with adjustable decimal precision up to 10 places. View step-by-step solutions, number line plots, and copy results.

Roth 401k Calculator

Compare Roth vs Traditional 401(k) after-tax values. Enter tax rates, employer match, and return rate. See break-even rate, tax drag, and growth chart.

Roth Calculator

Compare Roth IRA and taxable account growth side by side. Enter your balance, return rate, tax bracket, and age. Includes IRS limits and inflation option.

Roth Conversion Calculator

Compare Roth conversion vs. Traditional IRA with side account modeling. Get break-even age, bracket-fill optimizer, RMD projections, and IRMAA flags.

Roth IRA Calculator

Use our free Roth IRA calculator to estimate your retirement savings growth. See how contributions, tax-free earnings, and time can build your wealth.

Round Robin Calculator

Calculate round robin parlay payouts with American or Decimal odds. Set Win, Loss, or Push per game. View risk, profit, and individual parlay breakdown.

Rounding Calculator

Free online rounding calculator. Round numbers to the nearest whole number, tenth, hundredth, or any decimal place instantly. Fast and easy to use.

RPE Calculator

Calculate your RPE (Rate of Perceived Exertion) instantly. Free online tool to measure workout intensity and optimize your training performance.

Open Engineering

RPM Calculator

Calculate engine RPM from speed, tire diameter, and axle ratio. Compare 4 preset transmissions or enter a custom gear ratio. Step-by-step math included.

RREF Calculator

Compute REF or RREF with exact fractions or decimals. View each row operation step by step. Get rank, pivot columns, nullity, and system solution type.

RSD Calculator

Calculate relative standard deviation from a data set or known SD and mean. Sample or population SD, %CV, ppt, deviation table, step-by-step solution.

Rule of 72 Calculator

Use our free Rule of 72 calculator to estimate how long it takes to double your investment. Enter your interest rate and get instant doubling time results.

Runescape Combat Calculator

Calculate your OSRS or RS3 combat level. Fetch stats from Hiscores, view Melee, Ranged, and Magic breakdown, and track progress to your next combat level.

Runescape Xp Calculator

Calculate XP needed for 30 skills from level 1 to 120. Compare methods by XP/hour and GP profit. Hiscores lookup, bonus XP, boosts, and Ironman filtering.

Running Pace Calculator

Calculate your running pace per mile or kilometer. Enter your distance and time to find splits, finish times, and improve your training performance.

RV Loan Calculator

Use our free RV loan calculator to estimate monthly payments, interest costs, and total loan amount. Plan your recreational vehicle purchase with confidence.