Kenji Takahara is a corporate finance analyst with hands‑on experience in budgeting, cash‑flow planning, and capital projects. After starting his career in accounting for manufacturing companies, he moved into FP&A, where he built models that connect day‑to‑day operations with long‑term investment decisions.
Kenji’s articles focus on clarity and repeatable process. He breaks complex topics—amortization schedules, working‑capital cycles, and variance analysis—into simple steps and uses clean examples to show how inputs drive outputs. His goal is to help readers verify numbers, understand assumptions, and make confident decisions backed by transparent calculations.
Selina Marquez
Finance Consultant
Selina Marquez is a finance consultant who helps individuals and organizations turn values into measurable portfolio decisions. With a background that blends asset management and international business, she focuses on practical ways to align return goals with risk controls and governance standards.
Her writing translates complex investment ideas—like diversification, rebalancing, and ESG screening—into clear, step‑by‑step guidance. Whether she’s breaking down fees and compounding or comparing portfolio scenarios, Selina prioritizes clarity, responsible decision‑making, and transparent assumptions. When she isn’t writing, she mentors early‑career professionals and keeps a close eye on how culture and policy trends shape markets.
I am Kenji Takahara. This tool computes advertising efficiency as a simple ratio. Enter revenue and ad spend; get ROAS instantly. Use it to gauge campaign performance and set spend thresholds.
Quick Start
Input Revenue (total attributed sales, $).
Input Ad Spend (media + platform fees, $).
Click Calculate. Result shows ROAS as a unitless multiple (e.g., 3.25).
Interpretation: ROAS > 1.00 means revenue exceeds ad spend. Whether that is profitable depends on gross margin and other costs.
How It Works
Scope the window: same date range for revenue and spend.
Use attributed revenue only (from the same channel/model).
Exclude non-ad costs; this is not ROI.
Compare results by campaign, ad set, or creative for ranking.
Summary: This ROAS calculator delivers a clean efficiency ratio. Use it fast for ranking and thresholds; pair with margin analysis for profitability decisions.
Frequently Asked Questions
What is ROAS?
ROAS is revenue divided by ad spend; it shows dollars earned per dollar spent.
Is ROAS the same as ROI?
No. ROAS ignores product costs and overhead; ROI includes profit after all costs.
What is a good ROAS?
It depends on gross margin. High-margin products can profit at lower ROAS.
Should I include agency fees in ad spend?
Yes, include media and platform fees; exclude salaries unless you treat them as variable ad costs.
Can I use net revenue after refunds?
Yes, but be consistent—match the same definition across all campaigns and periods.
Why does my ROAS change over time?
Attribution lags and learning phases shift revenue recognition; give campaigns time to mature.
How do I set a target ROAS?
Compute break-even ROAS as 1 ÷ gross margin; set targets above that to cover overhead and profit.
