Custom-themed calculators for your website
Pick any calculator, match your brand colors, add your logo, and get a self-contained HTML/CSS embed you can paste into any site. No iframe, no Calc.Cards branding.
Step 1 — Pick a calculator
Want a different calculator? Mention it in the notes — we'll build any of the 370+.
Step 2 — Set your palette
Order: accent, text, muted text, border, background.
Step 3 — Logo (optional)
Live preview
Mortgage Calculator
Loan amount
Interest rate
Preview approximation. Final embed is hand-tuned for your site's typography and spacing.
What you get for $199
Self-contained HTML/CSS
No iframe required. Drop directly into your CMS or static site. Works in WordPress, Webflow, Squarespace, plain HTML.
Your brand, not ours
No "Powered by Calc.Cards" attribution. Your logo, your colors, your styling.
Editable color palette
Auto-extract from your website OR pick from presets OR enter exact hex codes. Edit any color before download.
Lifetime updates
When we improve the underlying calculator formula or UX, you get the update for free.
How it works
Choose a calculator
Pick from any of our 370+ calculators.
Set your branding
Upload a logo or paste your website URL — we extract your brand palette automatically. Edit any color.
Submit your order
Provide your email and we build the custom embed.
Receive the file
Within 1 business day, you get a self-contained HTML/CSS file via email.
Compare
Free embed
$0
- iframe with Calc.Cards branding
- Standard light/dark theme
- Attribution required
Branded calculator
$199
- One calculator, your brand
- Self-contained HTML/CSS
- No attribution, no iframe
- Lifetime formula updates