Tip Calculator
Never struggle with tip math again! This easy-to-use tip calculator helps you calculate the perfect tip for any service. Enter your bill amount, select or customize your tip percentage, and split the total between multiple people. Great for restaurants, delivery services, salons, and any tipping situation. Perfect for restaurant websites, food delivery apps, and hospitality businesses.
Try the Calculator
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export function tipCalculator(form: FormTs) {
form.addRow(row => {
row.addTextPanel('header', {
computedValue: () => 'Tip Calculator',
customStyles: { 'font-size': '1.5rem', 'font-weight': '600', 'color': '#1e293b' }
});
});
form.addSpacer({ height: 20 });
// Bill Details Section
const billSection = form.addSubform('bill', { title: '🧾 Bill Details' });
billSection.addRow(row => {
row.addDecimal('billAmount', {
label: 'Bill Amount',
min: 0,
max: 100000,
defaultValue: 85.50,
placeholder: 'e.g. 85.50',
prefix: '$',
isRequired: true
}, '1fr');
row.addDropdown('taxOption', {
label: 'Calculate Tip On',
options: [
{ id: 'pre-tax', name: 'Pre-tax Amount' },
{ id: 'post-tax', name: 'Total with Tax' }
],
defaultValue: 'post-tax',
tooltip: 'Choose whether to tip on pre-tax or post-tax amount'
}, '1fr');
});
billSection.addRow(row => {
row.addDecimal('taxAmount', {
label: 'Tax Amount (if pre-tax)',
min: 0,
max: 10000,
defaultValue: 0,
placeholder: 'e.g. 7.50',
prefix: '$',
isVisible: () => billSection.dropdown('taxOption')?.value() === 'pre-tax',
tooltip: 'Enter tax amount to calculate tip on pre-tax total'
});
});
// Tip Selection Section
const tipSection = form.addSubform('tip', { title: '💵 Tip Amount' });
tipSection.addRow(row => {
row.addRadioButton('tipPreset', {
label: 'Tip Percentage',
options: [
{ id: '15', name: '15% (Good)' },
{ id: '18', name: '18% (Great)' },
{ id: '20', name: '20% (Excellent)' },
{ id: '25', name: '25% (Outstanding)' },
{ id: 'custom', name: 'Custom' }
],
defaultValue: '20',
isRequired: true
});
});
tipSection.addRow(row => {
row.addDecimal('customTip', {
label: 'Custom Tip Percentage',
min: 0,
max: 100,
defaultValue: 22,
suffix: '%',
isVisible: () => tipSection.radioButton('tipPreset')?.value() === 'custom'
});
});
// Split Bill Section
const splitSection = form.addSubform('split', { title: '👥 Split the Bill' });
splitSection.addRow(row => {
row.addInteger('numberOfPeople', {
label: 'Number of People',
min: 1,
max: 50,
defaultValue: 1,
isRequired: true
}, '1fr');
row.addDropdown('roundOption', {
label: 'Round Total',
options: [
{ id: 'none', name: 'No Rounding' },
{ id: 'nearest', name: 'Nearest Dollar' },
{ id: 'up', name: 'Round Up' }
],
defaultValue: 'none',
tooltip: 'Round the total for easier splitting'
}, '1fr');
});
form.addSpacer({ height: 20, showLine: true, lineStyle: 'dashed' });
// Quick Reference
const quickTipSection = form.addSubform('quickTip', { title: '⚡ Quick Tip Reference', isCollapsible: true });
quickTipSection.addRow(row => {
row.addTextPanel('quickTips', {
computedValue: () => {
const billAmount = billSection.decimal('billAmount')?.value() || 85.50;
const taxOption = billSection.dropdown('taxOption')?.value() || 'post-tax';
const taxAmount = billSection.decimal('taxAmount')?.value() || 0;
const tipBase = taxOption === 'pre-tax' ? billAmount - taxAmount : billAmount;
const tip15 = ((Number(tipBase) || 0) * 0.15).toFixed(2);
const tip18 = ((Number(tipBase) || 0) * 0.18).toFixed(2);
const tip20 = ((Number(tipBase) || 0) * 0.20).toFixed(2);
const tip25 = ((Number(tipBase) || 0) * 0.25).toFixed(2);
return `15%: $${tip15} | 18%: $${tip18} | 20%: $${tip20} | 25%: $${tip25}`;
},
customStyles: { 'font-size': '0.9rem', 'color': '#475569', 'text-align': 'center' }
});
});
// Results Section
const resultsSection = form.addSubform('results', { title: '📊 Tip Breakdown', isCollapsible: false });
resultsSection.addRow(row => {
row.addPriceDisplay('tipAmount', {
label: 'Tip Amount',
computedValue: () => {
const billAmount = billSection.decimal('billAmount')?.value() || 85.50;
const taxOption = billSection.dropdown('taxOption')?.value() || 'post-tax';
const taxAmount = billSection.decimal('taxAmount')?.value() || 0;
const tipPreset = tipSection.radioButton('tipPreset')?.value() || '20';
const customTip = tipSection.decimal('customTip')?.value() || 22;
const tipBase = taxOption === 'pre-tax' ? billAmount - taxAmount : billAmount;
const tipPercent = tipPreset === 'custom' ? customTip : parseFloat(tipPreset);
return Math.round(tipBase * (tipPercent / 100) * 100) / 100;
},
variant: 'success'
}, '1fr');
row.addTextPanel('tipPercentDisplay', {
label: 'Tip Percentage',
computedValue: () => {
const tipPreset = tipSection.radioButton('tipPreset')?.value() || '20';
const customTip = tipSection.decimal('customTip')?.value() || 22;
const tipPercent = tipPreset === 'custom' ? customTip : parseFloat(tipPreset);
return `${tipPercent}%`;
},
customStyles: { 'font-size': '1.5rem', 'font-weight': '600', 'text-align': 'center', 'color': '#059669' }
}, '1fr');
});
resultsSection.addRow(row => {
row.addPriceDisplay('totalAmount', {
label: 'Total (Bill + Tip)',
computedValue: () => {
const billAmount = billSection.decimal('billAmount')?.value() || 85.50;
const taxOption = billSection.dropdown('taxOption')?.value() || 'post-tax';
const taxAmount = billSection.decimal('taxAmount')?.value() || 0;
const tipPreset = tipSection.radioButton('tipPreset')?.value() || '20';
const customTip = tipSection.decimal('customTip')?.value() || 22;
const roundOption = splitSection.dropdown('roundOption')?.value() || 'none';
const tipBase = taxOption === 'pre-tax' ? billAmount - taxAmount : billAmount;
const tipPercent = tipPreset === 'custom' ? customTip : parseFloat(tipPreset);
const tipAmount = tipBase * (tipPercent / 100);
let total = billAmount + tipAmount;
if (roundOption === 'nearest') {
total = Math.round(total);
} else if (roundOption === 'up') {
total = Math.ceil(total);
}
return Math.round(total * 100) / 100;
},
variant: 'large'
});
});
// Per Person Section
const perPersonSection = form.addSubform('perPerson', { title: '👤 Per Person', isCollapsible: false });
perPersonSection.addRow(row => {
row.addPriceDisplay('tipPerPerson', {
label: 'Tip per Person',
computedValue: () => {
const billAmount = billSection.decimal('billAmount')?.value() || 85.50;
const taxOption = billSection.dropdown('taxOption')?.value() || 'post-tax';
const taxAmount = billSection.decimal('taxAmount')?.value() || 0;
const tipPreset = tipSection.radioButton('tipPreset')?.value() || '20';
const customTip = tipSection.decimal('customTip')?.value() || 22;
const numberOfPeople = splitSection.integer('numberOfPeople')?.value() || 1;
const tipBase = taxOption === 'pre-tax' ? billAmount - taxAmount : billAmount;
const tipPercent = tipPreset === 'custom' ? customTip : parseFloat(tipPreset);
const tipAmount = tipBase * (tipPercent / 100);
return Math.round((tipAmount / numberOfPeople) * 100) / 100;
},
variant: 'default'
}, '1fr');
row.addPriceDisplay('totalPerPerson', {
label: 'Total per Person',
computedValue: () => {
const billAmount = billSection.decimal('billAmount')?.value() || 85.50;
const taxOption = billSection.dropdown('taxOption')?.value() || 'post-tax';
const taxAmount = billSection.decimal('taxAmount')?.value() || 0;
const tipPreset = tipSection.radioButton('tipPreset')?.value() || '20';
const customTip = tipSection.decimal('customTip')?.value() || 22;
const numberOfPeople = splitSection.integer('numberOfPeople')?.value() || 1;
const roundOption = splitSection.dropdown('roundOption')?.value() || 'none';
const tipBase = taxOption === 'pre-tax' ? billAmount - taxAmount : billAmount;
const tipPercent = tipPreset === 'custom' ? customTip : parseFloat(tipPreset);
const tipAmount = tipBase * (tipPercent / 100);
let total = billAmount + tipAmount;
if (roundOption === 'nearest') {
total = Math.round(total);
} else if (roundOption === 'up') {
total = Math.ceil(total);
}
return Math.round((total / numberOfPeople) * 100) / 100;
},
variant: 'success'
}, '1fr');
});
perPersonSection.addRow(row => {
row.addTextPanel('splitNote', {
computedValue: () => {
const numberOfPeople = splitSection.integer('numberOfPeople')?.value() || 1;
if (numberOfPeople === 1) {
return 'Not splitting the bill';
}
return `Bill split ${numberOfPeople} ways`;
},
customStyles: { 'font-size': '0.9rem', 'color': '#64748b', 'text-align': 'center' }
});
});
// Summary Section
const summarySection = form.addSubform('summary', {
title: '🧾 Summary',
isCollapsible: false,
sticky: 'bottom'
});
summarySection.addRow(row => {
row.addTextPanel('summaryText', {
computedValue: () => {
const billAmount = billSection.decimal('billAmount')?.value() || 85.50;
const tipPreset = tipSection.radioButton('tipPreset')?.value() || '20';
const customTip = tipSection.decimal('customTip')?.value() || 22;
const numberOfPeople = splitSection.integer('numberOfPeople')?.value() || 1;
const tipPercent = tipPreset === 'custom' ? customTip : parseFloat(tipPreset);
if (numberOfPeople === 1) {
return `$${(Number(billAmount) || 0).toFixed(2)} bill with ${tipPercent}% tip`;
}
return `$${(Number(billAmount) || 0).toFixed(2)} bill with ${tipPercent}% tip, split ${numberOfPeople} ways`;
},
customStyles: { 'font-size': '0.95rem', 'font-weight': '500', 'text-align': 'center', 'color': '#1e293b' }
});
});
summarySection.addRow(row => {
row.addTextPanel('tippingNote', {
computedValue: () => 'Tip amounts are suggestions. Always tip based on service quality and local customs.',
customStyles: { 'font-size': '0.8rem', 'color': '#64748b', 'text-align': 'center' }
});
});
form.configureSubmitButton({
label: 'Share Bill'
});
}
Frequently Asked Questions
What is the standard tip percentage?
In the US, 15-20% is standard for good service at restaurants. 18-20% is common for excellent service. For other services like delivery or salons, 15-20% is also typical.
Should I tip on the pre-tax or post-tax amount?
Traditionally, tips are calculated on the pre-tax amount, but tipping on the total including tax has become common. This calculator lets you choose either approach.
How do I split the bill fairly?
The easiest method is to divide the total (bill + tip) equally among all diners. For more complex situations, some prefer to have each person tip on their individual orders.
Can I customize this calculator?
Yes. You can adjust default tip percentages, add your branding, and embed it on your restaurant or hospitality website to help customers calculate tips easily.
What tip percentages should I use for different services?
Restaurants: 15-20%, Delivery: 15-20% or $2-5 minimum, Hair salon: 15-20%, Taxi/Rideshare: 15-20%, Hotel housekeeping: $2-5 per night.