Simple, transparent pricing
Every calculator is free forever. Upgrade to Pro for save, export, and history.
Free
No account required. Just open and calculate.
- Every calculator — dilution, reagent prep, master mix & more
- Calibration curves, LOD/LOQ & QC statistics
- Unit conversions & bench formulas (Beer-Lambert, RPM/RCF)
- Buffer & HPLC mobile-phase presets
- Single printable lab label export
- Unlimited calculations — no account needed
Pro
or $49/yr — save 40%
For scientists who prep solutions and run assays regularly.
- Everything in Free
- Save & recall unlimited calculations
- Export results & prep sheets to PDF or CSV
- Batch lab label sheets & saved templates
- Saved unit preferences per tool
- Calculation history & dashboard
- Priority support
Cancel any time. No long-term contracts. Secure checkout via Stripe.
Frequently asked questions
Which calculators are included?
Every LabTools calculator is free: dilution and serial dilution, reagent prep, stock solution and PCR master mix planners, molecular weight, calibration curves, LOD/LOQ, QC statistics, unit conversions, and bench formulas like Beer-Lambert, RPM/RCF, and Henderson-Hasselbalch.
Can I use the calculators without signing up?
Yes — every calculator is completely free and requires no account. Just open the tool and calculate.
What does the Pro plan add?
Pro adds the ability to save and recall named calculations, export results and prep sheets to PDF or CSV, generate batch lab label sheets and reusable label templates, save unit preferences per tool, and view your full calculation history from any device.
Can I cancel any time?
Absolutely. Cancel from your dashboard at any time with no fees or lock-in. Your Pro access lasts until the end of your billing period.
Is there a free trial?
The free tier gives you full access to every calculator indefinitely. Pro features are available instantly after upgrading.