Calculators
Never redo a dilution on paper again.
- Dilution calculator
- Mass and molarity, in both directions
- Molecular weight from the periodic table
- Expression calculator with high precision
Free for Android and iOS
The math before
the experiment.
Done.
Dilutions, molarity, buffers, master mixes, timers and lab tools for whole sample sets. Lab.hacks handles the arithmetic of your lab day so you can focus on the experiment.
- No account
- Works offline
- Your data stays on your phone
20,000scientists every month
156countries
88%keep coming back
63k+on Instagram
As of November 2026. App users from Google Analytics, followers from Instagram.
Everything at your bench
One app. Every small calculation.
Built by lab people for the moments between two pipetting steps.
Buffers
Know what is left on the shelf.
Build buffers from stock solutions or powders with pH, sterilisation and storage steps. Keep your stocks with a fill level and a warning when a bottle runs low. Start from a library of ready made buffers and stock solutions.
Lab.Helper
Timers that never forget.
Several timers at once, each with a name and an alarm. The stopwatch keeps running in the background.
Counter
Cells per ml and viability.
Count a Neubauer chamber, get cells per ml and the share of living cells, and take the result straight into your culture.
Converter
Every unit of the lab day.
Optical density, concentration, volume, mass, temperature, pressure and more, 13 categories in all. Centrifuge speed between RPM and ×g with your rotor radius.
Master mixes
Eppendorf or Falcon, sized right.
Set reactions and excess in percent or reactions. The app tells you when the mix will not fit the tube and gives you a pipetting table.
Reference
Tables in your pocket.
DNA, RNA and protein ladders, agarose and SDS PAGE ranges, purity ratios, codon wheel, fluorochromes, antibiotics and cell culture vessels. Everything for the gel in one place.
Lab.hacks content
Tips from the lab, right in the app.
Short protocols, tricks and lab humour from the team behind @lab.hacks, with a notification when something new lands.
Extras
Music for the bench.
Playlists for long incubations. And a unicorn. Find it yourself. 🦄
Lab.tools
Tools for the jobs that eat your afternoon.
Whole sample sets and whole plates, planned on the phone and pipetted with the app at your side.
Pipetting Assistant
Plan the plate. Then let the app walk you through it.
Design plates up to 384 wells or a simple run of tubes. Add samples with colours, let replicates lay themselves out, then switch to pipetting mode and go well by well.
- Full screen pipetting mode
- Notes per well, skip and pause
- qPCR template, save your own templates
- Export as PDF with plate image, or CSV
Concentration Equalizer
Twelve samples, twelve concentrations. One target.
Enter what you measured for each tube, set the target concentration and volume, and get exactly how much sample and diluent goes into every tube.
- Per tube targets and volumes if you need them
- Pipetting checklist with big tick boxes
- Warns you when a volume drops below 1 µl
- Export as PDF or CSV
Sample Storage
Every sample in its box, every box in its place.
Freezers, fridges, shelves and dewars with their compartments, boxes as grids, lists or bags, and every sample with the fields its type needs.
- Lineage, aliquots and derived samples
- Reagents with lot and expiry
- Favourites and a walking list
- Import a box from CSV, export PDF and CSV
Pipette Check
Check your pipettes against a balance.
Type in the balance readings, the app works out accuracy and precision with the Z factor for your temperature and shows a traffic light against the limits of your pipette type. It reminds you when the next check is due.
- Accuracy and precision shown separately
- History with every calibration
- Reminder when a check is due
- Checks only, it does not replace an accredited calibration
Cell Culture Tracker
Plates, forecasts and culture sessions.
Incubators, plates and wells with confluence logs and a growth forecast from the doubling time. Seeding, passage, freeze and harvest back into your sample storage.
- Seeding calculator by vessel area
- Treatment, transfection, medium changes with timers
- Culture sessions you can pause
- Samples carry their data between storage and tracker
Export and print
From phone to lab book.
Buffers, equalizer runs and plates export as PDF, ready to print or share. Runs and plates also as CSV.
Light and dark
Bright lab or dim hood.
Pick light or dark, independent of your phone.
Nothing gets lost
Your buffers move with you.
The update keeps everything you saved in the old app. Buffers, master mixes and the rest come along on the first start.
Try it right here
How much stock
do you need?
This is the dilution calculator of the app, running in your browser. Change a value and watch the answer update.
Made for real lab conditions
Gloves on. One hand free.
01
Big targets
Buttons you can hit with nitrile gloves and a pipette in the other hand.
02
Offline first
Every calculator works in the basement lab without WiFi.
03
No account
Open it and calculate. No sign up, no password, no waiting.
04
Private by design
Your buffers, samples and counts stay on your device.
A look inside
Dark, calm, fast.
Join 63k+ lab people on Instagram
Lab hacks, memes and the honest side of research. Every week.
Your bench,
upgraded.
Free for Android and iOS. No account, works offline.