Tools
Do the sums yourself.
Two small tools that show their working. They run entirely in your browser, nothing you enter is sent anywhere, and neither pretends to know your market better than you do.
Tool
Google Ads budget check
Put your own cost per click, conversion rate and sales numbers in, and see whether a daily budget can plausibly pay for itself. Nothing leaves your browser.
Open the tool ToolSEO or paid search? A decision helper
Answer six questions about urgency, margin, search demand and budget. The helper shows its reasoning rather than a verdict, so you can disagree with it.
Open the tool